diff --git a/apps/app_queue.c b/apps/app_queue.c
index a3dce7e9515a5c74463d7e72bc16910daf98ae5d..aa960252114ab08e1c743171b3086ea1e3047b2e 100644
--- a/apps/app_queue.c
+++ b/apps/app_queue.c
@@ -96,7 +96,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/astdb.h"
 #include "asterisk/devicestate.h"
 #include "asterisk/stringfields.h"
-#include "asterisk/event.h"
 #include "asterisk/astobj2.h"
 #include "asterisk/strings.h"
 #include "asterisk/global_datastores.h"
diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index a258e6a0a082d3ebace0afb277c031156f8ebcd1..1f048a283687a15429465cee4e98cdfeab6c0335 100644
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -131,7 +131,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/strings.h"
 #include "asterisk/smdi.h"
 #include "asterisk/astobj2.h"
-#include "asterisk/event.h"
 #include "asterisk/taskprocessor.h"
 #include "asterisk/test.h"
 
diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index b694ecf9455cbd815b1c53ae3cc0ec7cc357b156..f2af6d918b4a76c11a2d32114617bd0b625bc3b1 100644
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -119,7 +119,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/abstract_jb.h"
 #include "asterisk/smdi.h"
 #include "asterisk/astobj.h"
-#include "asterisk/event.h"
 #include "asterisk/devicestate.h"
 #include "asterisk/paths.h"
 #include "asterisk/ccss.h"
diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 786b4617b980ecc2d46171faa14b80abc396bd08..1b910a14a0d04bd59c58483c37d3d386699ec120 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -105,7 +105,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/netsock.h"
 #include "asterisk/stringfields.h"
 #include "asterisk/linkedlists.h"
-#include "asterisk/event.h"
 #include "asterisk/astobj2.h"
 #include "asterisk/timing.h"
 #include "asterisk/taskprocessor.h"
diff --git a/channels/chan_mgcp.c b/channels/chan_mgcp.c
index 07d8434cb23e02bbc6e7e9e9947b2cbd2742d945..0bb102b63f6075d5119f47263ca9f079d2add451 100644
--- a/channels/chan_mgcp.c
+++ b/channels/chan_mgcp.c
@@ -79,7 +79,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/devicestate.h"
 #include "asterisk/stringfields.h"
 #include "asterisk/abstract_jb.h"
-#include "asterisk/event.h"
 #include "asterisk/chanvars.h"
 #include "asterisk/pktccops.h"
 #include "asterisk/stasis.h"
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 79e8211751619cdf23ec56d42ae9865b5acc990b..36291d1ac31e4fad0f276e20e44aaefaadaf80a4 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -276,7 +276,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/threadstorage.h"
 #include "asterisk/translate.h"
 #include "asterisk/ast_version.h"
-#include "asterisk/event.h"
 #include "asterisk/data.h"
 #include "asterisk/aoc.h"
 #include "asterisk/message.h"
diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index 35da7bf8a52957fea18b50bbb05ecce251f75438..78e34450ff596a3a0af9a2d8aeb812d06e43b38b 100644
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -77,7 +77,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/abstract_jb.h"
 #include "asterisk/threadstorage.h"
 #include "asterisk/devicestate.h"
-#include "asterisk/event.h"
 #include "asterisk/indications.h"
 #include "asterisk/linkedlists.h"
 #include "asterisk/stasis_endpoints.h"
diff --git a/channels/chan_unistim.c b/channels/chan_unistim.c
index e712d7684cf1c7713b84dd9ed7d5bd1c4aee38b0..adb5cb9c836a68218848bd4a8fc23be47cfbe9af 100644
--- a/channels/chan_unistim.c
+++ b/channels/chan_unistim.c
@@ -63,7 +63,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/config.h"
 #include "asterisk/module.h"
 #include "asterisk/pbx.h"
-#include "asterisk/event.h"
 #include "asterisk/rtp_engine.h"
 #include "asterisk/netsock2.h"
 #include "asterisk/acl.h"
diff --git a/channels/sig_pri.c b/channels/sig_pri.c
index 3b3902f3439068033756dc1f9cf6cdc6ee8003ae..8a63600bf90b2b6220b1c524767383d5cdb68830 100644
--- a/channels/sig_pri.c
+++ b/channels/sig_pri.c
@@ -8884,8 +8884,10 @@ static void sig_pri_send_mwi_indication(struct sig_pri_span *pri, const char *vm
  * \brief MWI subscription event callback.
  * \since 1.8
  *
- * \param event the event being passed to the subscriber
- * \param userdata the data provider in the call to ast_event_subscribe()
+ * \param userdata the data provider in the call to stasis_subscribe()
+ * \param sub the subscription to which the message was delivered for this callback
+ * \param topic the topic on which the message was published
+ * \param msg the message being passed to the subscriber
  *
  * \return Nothing
  */
diff --git a/channels/sig_pri.h b/channels/sig_pri.h
index 62e0dc9631f26250a1dc437046105b5656a62733..a46bca637f1ded3beeb7a56c66d513ec9c7d300b 100644
--- a/channels/sig_pri.h
+++ b/channels/sig_pri.h
@@ -27,7 +27,6 @@
 
 #include "asterisk/channel.h"
 #include "asterisk/frame.h"
-#include "asterisk/event.h"
 #include "asterisk/ccss.h"
 #include <libpri.h>
 #include <dahdi/user.h>
diff --git a/funcs/func_presencestate.c b/funcs/func_presencestate.c
index 3bf4a81b31370b38f845b3ef36443b5db24ca9f2..75cef8a549b91a4dee29626c73695999f64d9885 100644
--- a/funcs/func_presencestate.c
+++ b/funcs/func_presencestate.c
@@ -41,7 +41,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/app.h"
 #ifdef TEST_FRAMEWORK
 #include "asterisk/test.h"
-#include "asterisk/event.h"
 #include <semaphore.h>
 #endif
 
diff --git a/include/asterisk/devicestate.h b/include/asterisk/devicestate.h
index cda8a5d98c42edca8b093a301eb1a4e57fc0c725..a3267387f9925f29e2f7e8c653ef5c534fa37f40 100644
--- a/include/asterisk/devicestate.h
+++ b/include/asterisk/devicestate.h
@@ -19,7 +19,7 @@
 /*! \file
  * \brief Device state management
  *
- * To subscribe to device state changes, use the generic ast_event_subscribe
+ * To subscribe to device state changes, use the stasis_subscribe
  * method.  For an example, see apps/app_queue.c.
  *
  * \todo Currently, when the state of a device changes, the device state provider
diff --git a/include/asterisk/event.h b/include/asterisk/event.h
index 90e27b2f6c6932ee3cbe5c65011aca47d2034d88..7d78207209c2c19c861bbbd54028089e66bf08ea 100644
--- a/include/asterisk/event.h
+++ b/include/asterisk/event.h
@@ -90,9 +90,7 @@ typedef void (*ast_event_cb_t)(const struct ast_event *event, void *userdata);
  * and must end with AST_EVENT_IE_END.
  *
  * If the ie_type specified is *not* AST_EVENT_IE_END, then it must be followed
- * by a valid IE payload type.  If the payload type specified is
- * AST_EVENT_IE_PLTYPE_EXISTS, then the 3rd argument should not be provided.
- * Otherwise, a payload must also be specified.
+ * by a valid IE payload type.  A payload must also be specified.
  *
  * \return This returns a reference to the subscription for use with
  *         un-subscribing later.  If there is a failure in creating the
@@ -159,20 +157,6 @@ void ast_event_sub_destroy(struct ast_event_sub *sub);
 int ast_event_sub_append_ie_uint(struct ast_event_sub *sub,
 	enum ast_event_ie_type ie_type, uint32_t uint);
 
-/*!
- * \brief Append a bitflags parameter to a subscription
- *
- * \param sub the dynamic subscription allocated with ast_event_subscribe_new()
- * \param ie_type the information element type for the parameter
- * \param flags the flags that must be present in the event to match this subscription
- *
- * \retval 0 success
- * \retval non-zero failure
- * \since 1.8
- */
-int ast_event_sub_append_ie_bitflags(struct ast_event_sub *sub,
-	enum ast_event_ie_type ie_type, uint32_t flags);
-
 /*!
  * \brief Append a string parameter to a subscription
  *
@@ -202,20 +186,6 @@ int ast_event_sub_append_ie_str(struct ast_event_sub *sub,
 int ast_event_sub_append_ie_raw(struct ast_event_sub *sub,
 	enum ast_event_ie_type ie_type, void *data, size_t raw_datalen);
 
-/*!
- * \brief Append an 'exists' parameter to a subscription
- *
- * \param sub the dynamic subscription allocated with ast_event_subscribe_new()
- * \param ie_type the information element type that must be present in the event
- *      for it to match this subscription.
- *
- * \retval 0 success
- * \retval non-zero failure
- * \since 1.6.1
- */
-int ast_event_sub_append_ie_exists(struct ast_event_sub *sub,
-	enum ast_event_ie_type ie_type);
-
 /*!
  * \brief Activate a dynamically built subscription
  *
@@ -245,15 +215,6 @@ int ast_event_sub_activate(struct ast_event_sub *sub);
  */
 struct ast_event_sub *ast_event_unsubscribe(struct ast_event_sub *event_sub);
 
-/*!
- * \brief Get description for a subscription
- *
- * \param sub subscription
- *
- * \return string description of the subscription
- */
-const char *ast_event_subscriber_get_description(struct ast_event_sub *sub);
-
 /*!
  * \brief Check if subscribers exist
  *
@@ -269,9 +230,7 @@ const char *ast_event_subscriber_get_description(struct ast_event_sub *sub);
  * and must end with AST_EVENT_IE_END.
  *
  * If the ie_type specified is *not* AST_EVENT_IE_END, then it must be followed
- * by a valid IE payload type.  If the payload type specified is
- * AST_EVENT_IE_PLTYPE_EXISTS, then the 3rd argument should not be provided.
- * Otherwise, a payload must also be specified.
+ * by a valid IE payload type.  A payload must also be specified.
  *
  * \return This returns one of the values defined in the ast_event_subscriber_res
  *         enum which will indicate if subscribers exist that match the given
@@ -309,12 +268,6 @@ enum ast_event_subscriber_res ast_event_check_subscriber(enum ast_event_type eve
  */
 void ast_event_report_subs(const struct ast_event_sub *sub);
 
-/*!
- * \brief Dump the event cache for the subscriber
- * \since 1.6.1
- */
-void ast_event_dump_cache(const struct ast_event_sub *event_sub);
-
 /*!
  * \brief Create a new event
  *
@@ -328,8 +281,7 @@ void ast_event_dump_cache(const struct ast_event_sub *event_sub);
  * and must end with AST_EVENT_IE_END.
  *
  * If the ie_type specified is *not* AST_EVENT_IE_END, then it must be followed
- * by a valid IE payload type.  The payload type, EXISTS, should not be used here
- * because it makes no sense to do so.  So, a payload must also be specified
+ * by a valid IE payload type.  A payload must also be specified
  * after the IE payload type.
  *
  * \note The EID IE will be appended automatically when this function is used
@@ -384,63 +336,6 @@ void ast_event_destroy(struct ast_event *event);
  */
 int ast_event_queue(struct ast_event *event);
 
-/*!
- * \brief Queue and cache an event
- *
- * \param event the event to be queued and cached
- *
- * \details
- * The purpose of caching events is so that the core can retain the last known
- * information for events that represent some sort of state.  That way, when
- * code needs to find out the current state, it can query the cache.
- *
- * The event API already knows which events can be cached and how to cache them.
- *
- * \retval 0 success
- * \retval non-zero failure.
- */
-int ast_event_queue_and_cache(struct ast_event *event);
-
-/*!
- * \brief Retrieve an event from the cache
- *
- * \param ast_event_type The type of event to retrieve from the cache
- *
- * The rest of the arguments to this function specify information elements to
- * match for retrieving events from the cache.  They are specified in the form:
- * \code
- *    <enum ast_event_ie_type>, [enum ast_event_ie_pltype, [payload] ]
- * \endcode
- * and must end with AST_EVENT_IE_END.
- *
- * If the ie_type specified is *not* AST_EVENT_IE_END, then it must be followed
- * by a valid IE payload type.  If the payload type specified is
- * AST_EVENT_IE_PLTYPE_EXISTS, then the 3rd argument should not be provided.
- * Otherwise, a payload must also be specified.
- *
- * \return A reference to an event retrieved from the cache.  If no event was
- *         found that matches the specified criteria, then NULL will be returned.
- *
- * \note If more than one event in the cache matches the specified criteria, only
- *       one will be returned, and it is undefined which one it will be.
- *
- * \note The caller of this function *must* call ast_event_destroy() on the
- *       returned event after it is done using it.
- *
- * Example Usage:
- *
- * \code
- * event = ast_event_get_cached(AST_EVENT_MWI,
- *     AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, mailbox,
- *     AST_EVENT_IE_END);
- * \endcode
- *
- * This example will check for an MWI event in the cache that matches the
- * specified mailbox.  This would be the way to find out the last known state
- * of a mailbox without having to poll the mailbox directly.
- */
-struct ast_event *ast_event_get_cached(enum ast_event_type, ...);
-
 /*!
  * \brief Append an information element that has a string payload
  *
@@ -475,55 +370,6 @@ int ast_event_append_ie_str(struct ast_event **event, enum ast_event_ie_type ie_
 int ast_event_append_ie_uint(struct ast_event **event, enum ast_event_ie_type ie_type,
 	uint32_t data);
 
-/*!
- * \brief Append an information element that has a bitflags payload
- *
- * \param event the event that the IE will be appended to
- * \param ie_type the type of IE to append
- * \param bitflags the flags that are the payload of the IE
- *
- * \retval 0 success
- * \retval -1 failure
- * \since 1.8
- *
- * The pointer to the event will get updated with the new location for the event
- * that now contains the appended information element.  If the re-allocation of
- * the memory for this event fails, it will be set to NULL.
- */
-int ast_event_append_ie_bitflags(struct ast_event **event, enum ast_event_ie_type ie_type,
-	uint32_t bitflags);
-
-/*!
- * \brief Append an information element that has a raw payload
- *
- * \param event the event that the IE will be appended to
- * \param ie_type the type of IE to append
- * \param data A pointer to the raw data for the payload of the IE
- * \param data_len The amount of data to copy into the payload
- *
- * \retval 0 success
- * \retval -1 failure
- *
- * The pointer to the event will get updated with the new location for the event
- * that now contains the appended information element.  If the re-allocation of
- * the memory for this event fails, it will be set to NULL.
- */
-int ast_event_append_ie_raw(struct ast_event **event, enum ast_event_ie_type ie_type,
-	const void *data, size_t data_len);
-
-/*!
- * \brief Append the global EID IE
- *
- * \param event the event to append IE to
- *
- * \note For ast_event_new() that includes IEs, this is done automatically
- *       for you.
- *
- * \retval 0 success
- * \retval -1 failure
- */
-int ast_event_append_eid(struct ast_event **event);
-
 /*!
  * \brief Get the value of an information element that has an integer payload
  *
@@ -536,18 +382,6 @@ int ast_event_append_eid(struct ast_event **event);
  */
 uint32_t ast_event_get_ie_uint(const struct ast_event *event, enum ast_event_ie_type ie_type);
 
-/*!
- * \brief Get the value of an information element that has a bitflags payload
- *
- * \param event The event to get the IE from
- * \param ie_type the type of information element to retrieve
- *
- * \return This returns the payload of the information element with the given type.
- *         However, an IE with a payload of 0, and the case where no IE is found
- *         yield the same return value.
- */
-uint32_t ast_event_get_ie_bitflags(const struct ast_event *event, enum ast_event_ie_type ie_type);
-
 /*!
  * \brief Get the value of an information element that has a string payload
  *
@@ -559,40 +393,6 @@ uint32_t ast_event_get_ie_bitflags(const struct ast_event *event, enum ast_event
  */
 const char *ast_event_get_ie_str(const struct ast_event *event, enum ast_event_ie_type ie_type);
 
-/*!
- * \brief Get the hash for the string payload of an IE
- *
- * \param event The event to get the IE from
- * \param ie_type the type of information element to retrieve the hash for
- *
- * \return This function returns the hash value as calculated by ast_str_hash()
- *         for the string payload.  This is stored in the event to avoid
- *         unnecessary string comparisons.
- */
-uint32_t ast_event_get_ie_str_hash(const struct ast_event *event, enum ast_event_ie_type ie_type);
-
-/*!
- * \brief Get the value of an information element that has a raw payload
- *
- * \param event The event to get the IE from
- * \param ie_type the type of information element to retrieve
- *
- * \return This returns the payload of the information element with the given type.
- *         If the information element isn't found, NULL will be returned.
- */
-const void *ast_event_get_ie_raw(const struct ast_event *event, enum ast_event_ie_type ie_type);
-
-/*!
- * \brief Get the length of the raw payload for a particular IE
- *
- * \param event The event to get the IE payload length from
- * \param ie_type the type of information element to get the length of
- *
- * \return If an IE of type ie_type is found, its payload length is returned.
- *         Otherwise, 0 is returned.
- */
-uint16_t ast_event_get_ie_raw_payload_len(const struct ast_event *event, enum ast_event_ie_type ie_type);
-
 /*!
  * \brief Get the string representation of an information element type
  *
@@ -623,28 +423,6 @@ enum ast_event_ie_pltype ast_event_get_ie_pltype(enum ast_event_ie_type ie_type)
  */
 enum ast_event_type ast_event_get_type(const struct ast_event *event);
 
-/*!
- * \brief Get the string representation of the type of the given event
- *
- * \arg event the event to get the type of
- *
- * \return the string representation of the event type of the provided event
- * \since 1.6.1
- */
-const char *ast_event_get_type_name(const struct ast_event *event);
-
-/*!
- * \brief Convert a string into an event type
- *
- * \param str the string to convert
- * \param event_type an output parameter for the event type
- *
- * \retval 0 success
- * \retval non-zero failure
- * \since 1.6.1
- */
-int ast_event_str_to_event_type(const char *str, enum ast_event_type *event_type);
-
 /*!
  * \brief Convert a string to an IE type
  *
@@ -707,15 +485,6 @@ enum ast_event_ie_type ast_event_iterator_get_ie_type(struct ast_event_iterator
  */
 uint32_t ast_event_iterator_get_ie_uint(struct ast_event_iterator *iterator);
 
-/*!
- * \brief Get the value of the current IE in the iterator as a bitflags payload
- *
- * \param iterator The iterator instance
- *
- * \return This returns the payload of the information element as bitflags.
- */
-uint32_t ast_event_iterator_get_ie_bitflags(struct ast_event_iterator *iterator);
-
 /*!
  * \brief Get the value of the current IE in the iterator as a string payload
  *
@@ -725,31 +494,6 @@ uint32_t ast_event_iterator_get_ie_bitflags(struct ast_event_iterator *iterator)
  */
 const char *ast_event_iterator_get_ie_str(struct ast_event_iterator *iterator);
 
-/*!
- * \brief Get the value of the current IE in the iterator instance that has a raw payload
- *
- * \param iterator The iterator instance
- *
- * \return This returns the payload of the information element as type raw.
- */
-void *ast_event_iterator_get_ie_raw(struct ast_event_iterator *iterator);
-
-/*!
- * \brief Get the length of the raw payload for the current IE for an iterator
- *
- * \param iterator The IE iterator
- *
- * \return The payload length of the current IE
- */
-uint16_t ast_event_iterator_get_ie_raw_payload_len(struct ast_event_iterator *iterator);
-
-/*!
- * \brief Get the minimum length of an ast_event.
- *
- * \return minimum amount of memory that will be consumed by any ast_event.
- */
-size_t ast_event_minimum_length(void);
-
 #if defined(__cplusplus) || defined(c_plusplus)
 }
 #endif
diff --git a/include/asterisk/event_defs.h b/include/asterisk/event_defs.h
index 7a4b064d0c1382f2a73314fee0c6e2f35bc34e74..e25908e29f9c8b2a04b2cb44f95bf0150e2f310c 100644
--- a/include/asterisk/event_defs.h
+++ b/include/asterisk/event_defs.h
@@ -26,7 +26,7 @@
 #define AST_EVENT_DEFS_H
 
 /*! \brief Event types
- * \note These values can *never* change. */
+ * \note These values no longer go over the wire and can change when items are removed. */
 enum ast_event_type {
 	/*! Reserved to provide the ability to subscribe to all events.  A specific
 	 *  event should never have a payload of 0. */
@@ -36,32 +36,12 @@ enum ast_event_type {
 	 *  \note There are no "custom" IE types, because IEs only have to be
 	 *  unique to the event itself, not necessarily across all events. */
 	AST_EVENT_CUSTOM              = 0x01,
-	/*! Voicemail message waiting indication */
-	AST_EVENT_MWI                 = 0x02,
 	/*! Someone has subscribed to events */
-	AST_EVENT_SUB                 = 0x03,
-	/*! Someone has unsubscribed from events */
-	AST_EVENT_UNSUB               = 0x04,
-	/*! The aggregate state of a device across all servers configured to be
-	 *  a part of a device state cluster has changed. */
-	AST_EVENT_DEVICE_STATE        = 0x05,
-	/*! The state of a device has changed on _one_ server.  This should not be used
-	 *  directly, in general.  Use AST_EVENT_DEVICE_STATE instead. */
-	AST_EVENT_DEVICE_STATE_CHANGE = 0x06,
+	AST_EVENT_SUB                 = 0x02,
 	/*! Channel Event Logging events */
-	AST_EVENT_CEL                 = 0x07,
-	/*! A report of a security related event (see security_events.h) */
-	AST_EVENT_SECURITY            = 0x08,
-	/*! Used by res_stun_monitor to alert listeners to an exernal network address change. */
-	AST_EVENT_NETWORK_CHANGE      = 0x09,
-	/*! The presence state for a presence provider */
-	AST_EVENT_PRESENCE_STATE      = 0x0a,
-	/*! Used to alert listeners when a named ACL has been changed. */
-	AST_EVENT_ACL_CHANGE          = 0x0b,
-	/*! Send out a ping for debugging distributed events */
-	AST_EVENT_PING                = 0x0c,
+	AST_EVENT_CEL                 = 0x03,
 	/*! Number of event types.  This should be the last event type + 1 */
-	AST_EVENT_TOTAL               = 0x0d,
+	AST_EVENT_TOTAL               = 0x04,
 };
 
 /*! \brief Event Information Element types */
@@ -69,243 +49,199 @@ enum ast_event_ie_type {
 	/*! Used to terminate the arguments to event functions */
 	AST_EVENT_IE_END                 = -1,
 
-	/*! 
-	 * \brief Number of new messages
-	 * Used by: AST_EVENT_MWI 
-	 * Payload type: UINT
-	 */
-	AST_EVENT_IE_NEWMSGS             = 0x0001,
-	/*! 
-	 * \brief Number of
-	 * Used by: AST_EVENT_MWI 
-	 * Payload type: UINT
-	 */
-	AST_EVENT_IE_OLDMSGS             = 0x0002,
-	/*! 
-	 * \brief Mailbox name \verbatim (mailbox[@context]) \endverbatim
-	 * Used by: AST_EVENT_MWI 
-	 * Payload type: STR
-	 */
-	AST_EVENT_IE_MAILBOX             = 0x0003,
 	/*! 
 	 * \brief Unique ID
 	 * Used by: AST_EVENT_SUB, AST_EVENT_UNSUB
 	 * Payload type: UINT
 	 */
-	AST_EVENT_IE_UNIQUEID            = 0x0004,
+	AST_EVENT_IE_UNIQUEID            = 0x0001,
 	/*! 
 	 * \brief Event type 
 	 * Used by: AST_EVENT_SUB, AST_EVENT_UNSUB
 	 * Payload type: UINT
 	 */
-	AST_EVENT_IE_EVENTTYPE           = 0x0005,
+	AST_EVENT_IE_EVENTTYPE           = 0x0002,
 	/*!
 	 * \brief Hint that someone cares that an IE exists
 	 * Used by: AST_EVENT_SUB
 	 * Payload type: UINT (ast_event_ie_type)
 	 */
-	AST_EVENT_IE_EXISTS              = 0x0006,
-	/*!
-	 * \brief Device Name
-	 * Used by AST_EVENT_DEVICE_STATE_CHANGE
-	 * Payload type: STR
-	 */
-	AST_EVENT_IE_DEVICE              = 0x0007,
-	/*!
-	 * \brief Generic State IE
-	 * Used by AST_EVENT_DEVICE_STATE_CHANGE
-	 * Payload type: UINT
-	 * The actual state values depend on the event which
-	 * this IE is a part of.
-	 */
-	 AST_EVENT_IE_STATE              = 0x0008,
+	AST_EVENT_IE_EXISTS              = 0x0003,
 	 /*!
 	  * \brief Context IE
 	  * Used by AST_EVENT_MWI
 	  * Payload type: str
 	  */
-	 AST_EVENT_IE_CONTEXT            = 0x0009,
+	 AST_EVENT_IE_CONTEXT            = 0x0004,
 	/*! 
 	 * \brief Channel Event Type
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: UINT
 	 */
-	AST_EVENT_IE_CEL_EVENT_TYPE      = 0x000a,
+	AST_EVENT_IE_CEL_EVENT_TYPE      = 0x0005,
 	/*! 
 	 * \brief Channel Event Time (seconds)
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: UINT
 	 */
-	AST_EVENT_IE_CEL_EVENT_TIME      = 0x000b,
+	AST_EVENT_IE_CEL_EVENT_TIME      = 0x0006,
 	/*! 
 	 * \brief Channel Event Time (micro-seconds)
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: UINT
 	 */
-	AST_EVENT_IE_CEL_EVENT_TIME_USEC = 0x000c,
+	AST_EVENT_IE_CEL_EVENT_TIME_USEC = 0x0007,
 	/*! 
 	 * \brief Channel Event User Event Name
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_USEREVENT_NAME  = 0x000d,
+	AST_EVENT_IE_CEL_USEREVENT_NAME  = 0x0008,
 	/*! 
 	 * \brief Channel Event CID name
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CIDNAME         = 0x000e,
+	AST_EVENT_IE_CEL_CIDNAME         = 0x0009,
 	/*! 
 	 * \brief Channel Event CID num
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CIDNUM          = 0x000f,
+	AST_EVENT_IE_CEL_CIDNUM          = 0x000a,
 	/*! 
 	 * \brief Channel Event extension name
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_EXTEN           = 0x0010,
+	AST_EVENT_IE_CEL_EXTEN           = 0x000b,
 	/*! 
 	 * \brief Channel Event context name
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CONTEXT         = 0x0011,
+	AST_EVENT_IE_CEL_CONTEXT         = 0x000c,
 	/*! 
 	 * \brief Channel Event channel name
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CHANNAME        = 0x0012,
+	AST_EVENT_IE_CEL_CHANNAME        = 0x000d,
 	/*! 
 	 * \brief Channel Event app name
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_APPNAME         = 0x0013,
+	AST_EVENT_IE_CEL_APPNAME         = 0x000e,
 	/*! 
 	 * \brief Channel Event app args/data
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_APPDATA         = 0x0014,
+	AST_EVENT_IE_CEL_APPDATA         = 0x000f,
 	/*! 
 	 * \brief Channel Event AMA flags
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: UINT
 	 */
-	AST_EVENT_IE_CEL_AMAFLAGS        = 0x0015,
+	AST_EVENT_IE_CEL_AMAFLAGS        = 0x0010,
 	/*! 
 	 * \brief Channel Event AccountCode
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_ACCTCODE        = 0x0016,
+	AST_EVENT_IE_CEL_ACCTCODE        = 0x0011,
 	/*! 
 	 * \brief Channel Event UniqueID
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_UNIQUEID        = 0x0017,
+	AST_EVENT_IE_CEL_UNIQUEID        = 0x0012,
 	/*! 
 	 * \brief Channel Event Userfield
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_USERFIELD       = 0x0018,
+	AST_EVENT_IE_CEL_USERFIELD       = 0x0013,
 	/*! 
 	 * \brief Channel Event CID ANI field
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CIDANI          = 0x0019,
+	AST_EVENT_IE_CEL_CIDANI          = 0x0014,
 	/*! 
 	 * \brief Channel Event CID RDNIS field
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CIDRDNIS        = 0x001a,
+	AST_EVENT_IE_CEL_CIDRDNIS        = 0x0015,
 	/*! 
 	 * \brief Channel Event CID dnid
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_CIDDNID         = 0x001b,
+	AST_EVENT_IE_CEL_CIDDNID         = 0x0016,
 	/*! 
 	 * \brief Channel Event Peer -- for Things involving multiple channels, like BRIDGE
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_PEER            = 0x001c,
+	AST_EVENT_IE_CEL_PEER            = 0x0017,
 	/*! 
 	 * \brief Channel Event LinkedID
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_LINKEDID        = 0x001d,
+	AST_EVENT_IE_CEL_LINKEDID        = 0x0018,
 	/*! 
 	 * \brief Channel Event peeraccount
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_PEERACCT        = 0x001e,
+	AST_EVENT_IE_CEL_PEERACCT        = 0x0019,
 	/*! 
 	 * \brief Channel Event extra data
 	 * Used by: AST_EVENT_CEL
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_CEL_EXTRA           = 0x001f,
+	AST_EVENT_IE_CEL_EXTRA           = 0x001a,
 	/*!
 	 * \brief Description
 	 * Used by: AST_EVENT_SUB, AST_EVENT_UNSUB
 	 * Payload type: STR
 	 */
-	AST_EVENT_IE_DESCRIPTION         = 0x0020,
+	AST_EVENT_IE_DESCRIPTION         = 0x001b,
 	/*!
 	 * \brief Entity ID
 	 * Used by All events
 	 * Payload type: RAW
 	 * This IE indicates which server the event originated from
 	 */
-	AST_EVENT_IE_EID                 = 0x0021,
-	AST_EVENT_IE_SECURITY_EVENT      = 0x0022,
-	AST_EVENT_IE_EVENT_VERSION       = 0x0023,
-	AST_EVENT_IE_SERVICE             = 0x0024,
-	AST_EVENT_IE_MODULE              = 0x0025,
-	AST_EVENT_IE_ACCOUNT_ID          = 0x0026,
-	AST_EVENT_IE_SESSION_ID          = 0x0027,
-	AST_EVENT_IE_SESSION_TV          = 0x0028,
-	AST_EVENT_IE_ACL_NAME            = 0x0029,
-	AST_EVENT_IE_LOCAL_ADDR          = 0x002a,
-	AST_EVENT_IE_REMOTE_ADDR         = 0x002b,
-	AST_EVENT_IE_EVENT_TV            = 0x002c,
-	AST_EVENT_IE_REQUEST_TYPE        = 0x002d,
-	AST_EVENT_IE_REQUEST_PARAMS      = 0x002e,
-	AST_EVENT_IE_AUTH_METHOD         = 0x002f,
-	AST_EVENT_IE_SEVERITY            = 0x0030,
-	AST_EVENT_IE_EXPECTED_ADDR       = 0x0031,
-	AST_EVENT_IE_CHALLENGE           = 0x0032,
-	AST_EVENT_IE_RESPONSE            = 0x0033,
-	AST_EVENT_IE_EXPECTED_RESPONSE   = 0x0034,
-	AST_EVENT_IE_RECEIVED_CHALLENGE  = 0x0035,
-	AST_EVENT_IE_RECEIVED_HASH       = 0x0036,
-	AST_EVENT_IE_USING_PASSWORD      = 0x0037,
-	AST_EVENT_IE_ATTEMPTED_TRANSPORT = 0x0038,
-	AST_EVENT_IE_PRESENCE_PROVIDER   = 0x0039,
-	AST_EVENT_IE_PRESENCE_STATE      = 0x003a,
-	AST_EVENT_IE_PRESENCE_SUBTYPE    = 0x003b,
-	AST_EVENT_IE_PRESENCE_MESSAGE    = 0x003c,
+	AST_EVENT_IE_EVENT_VERSION       = 0x001c,
+	AST_EVENT_IE_SERVICE             = 0x001d,
+	AST_EVENT_IE_MODULE              = 0x001e,
+	AST_EVENT_IE_ACCOUNT_ID          = 0x001f,
+	AST_EVENT_IE_SESSION_ID          = 0x0020,
+	AST_EVENT_IE_SESSION_TV          = 0x0021,
+	AST_EVENT_IE_ACL_NAME            = 0x0022,
+	AST_EVENT_IE_LOCAL_ADDR          = 0x0023,
+	AST_EVENT_IE_REMOTE_ADDR         = 0x0024,
+	AST_EVENT_IE_EVENT_TV            = 0x0025,
+	AST_EVENT_IE_REQUEST_TYPE        = 0x0026,
+	AST_EVENT_IE_REQUEST_PARAMS      = 0x0027,
+	AST_EVENT_IE_AUTH_METHOD         = 0x0028,
+	AST_EVENT_IE_SEVERITY            = 0x0029,
+	AST_EVENT_IE_EXPECTED_ADDR       = 0x002a,
+	AST_EVENT_IE_CHALLENGE           = 0x002b,
+	AST_EVENT_IE_RESPONSE            = 0x002c,
+	AST_EVENT_IE_EXPECTED_RESPONSE   = 0x002e,
+	AST_EVENT_IE_RECEIVED_CHALLENGE  = 0x002f,
+	AST_EVENT_IE_RECEIVED_HASH       = 0x0030,
+	AST_EVENT_IE_USING_PASSWORD      = 0x0031,
+	AST_EVENT_IE_ATTEMPTED_TRANSPORT = 0x0032,
 
-	/*!
-	 * \brief Event non-cachability flag
-	 * Used by: All events
-	 * Payload type: UINT
-	 */
-	AST_EVENT_IE_CACHABLE            = 0x003d,
 	/*! \brief Must be the last IE value +1 */
-	AST_EVENT_IE_TOTAL               = 0x003e,
+	AST_EVENT_IE_TOTAL               = 0x0033,
 };
 
 /*!
@@ -313,16 +249,12 @@ enum ast_event_ie_type {
  */
 enum ast_event_ie_pltype {
 	AST_EVENT_IE_PLTYPE_UNKNOWN = -1,
-	/*! Just check if it exists, not the value */
-	AST_EVENT_IE_PLTYPE_EXISTS,
 	/*! Unsigned Integer (Can be used for signed, too ...) */
 	AST_EVENT_IE_PLTYPE_UINT,
 	/*! String */
 	AST_EVENT_IE_PLTYPE_STR,
 	/*! Raw data, compared with memcmp */
 	AST_EVENT_IE_PLTYPE_RAW,
-	/*! Bit flags (unsigned integer, compared using boolean logic) */
-	AST_EVENT_IE_PLTYPE_BITFLAGS,
 };
 
 /*!
diff --git a/include/asterisk/security_events_defs.h b/include/asterisk/security_events_defs.h
index 6f32dae31bff74614133bc44dcbe49eb69b7a107..30a7136064f29681fafcb77e4936d89e86bb5c8f 100644
--- a/include/asterisk/security_events_defs.h
+++ b/include/asterisk/security_events_defs.h
@@ -36,11 +36,6 @@ extern "C" {
 
 /*!
  * \brief Security event types
- *
- * AST_EVENT_SECURITY is the event type of an ast_event generated as a security
- * event.  The event will have an information element of type
- * AST_EVENT_IE_SECURITY_EVENT which identifies the security event sub-type.
- * This enum defines the possible values for this sub-type.
  */
 enum ast_security_event_type {
 	/*!
diff --git a/main/ccss.c b/main/ccss.c
index 61e89187baefdecfc641765c6cf55ded9740cc0f..061c45a7ca269a41ece5d5e91b8a0e1ffa20fc44 100644
--- a/main/ccss.c
+++ b/main/ccss.c
@@ -45,7 +45,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/pbx.h"
 #include "asterisk/utils.h"
 #include "asterisk/taskprocessor.h"
-#include "asterisk/event.h"
 #include "asterisk/devicestate.h"
 #include "asterisk/module.h"
 #include "asterisk/app.h"
diff --git a/main/devicestate.c b/main/devicestate.c
index c16a0628b38fed8c3d6875078e3e3de00b8bad80..bcf07ff0b2d57ab58b75409c97dee006420ebcf0 100644
--- a/main/devicestate.c
+++ b/main/devicestate.c
@@ -131,7 +131,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/app.h"
 #include "asterisk/astobj2.h"
 #include "asterisk/stasis.h"
-#include "asterisk/event.h"
 #include "asterisk/devicestate.h"
 
 #define DEVSTATE_TOPIC_BUCKETS 57
diff --git a/main/event.c b/main/event.c
index 323407cdf82d28f1f4272953bbb9266442a843c8..787f3bc51cb530073161be2d9079cb5af018d1b1 100644
--- a/main/event.c
+++ b/main/event.c
@@ -45,6 +45,11 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/cli.h"
 
 static struct ast_taskprocessor *event_dispatcher;
+static int event_append_ie_raw(struct ast_event **event, enum ast_event_ie_type ie_type,
+	const void *data, size_t data_len);
+static const void *event_get_ie_raw(const struct ast_event *event, enum ast_event_ie_type ie_type);
+static uint16_t event_get_ie_raw_payload_len(const struct ast_event *event, enum ast_event_ie_type ie_type);
+static uint32_t event_get_ie_str_hash(const struct ast_event *event, enum ast_event_ie_type ie_type);
 
 /*!
  * \brief An event information element
@@ -92,20 +97,6 @@ struct ast_event {
 } __attribute__((packed));
 
 
-/*!
- * \brief A holder for an event
- *
- * \details This struct used to have more of a purpose than it does now.
- * It is used to hold events in the event cache.  It can be completely removed
- * if one of these two things is done:
- *  - ast_event gets changed such that it never has to be realloc()d
- *  - astobj2 is updated so that you can realloc() an astobj2 object
- */
-struct ast_event_ref {
-	struct ast_event *event;
-	unsigned int cache;
-};
-
 struct ast_event_ie_val {
 	AST_LIST_ENTRY(ast_event_ie_val) entry;
 	enum ast_event_ie_type ie_type;
@@ -138,84 +129,6 @@ static uint32_t sub_uniqueid;
  * The event subscribers are indexed by which event they are subscribed to */
 static AST_RWDLLIST_HEAD(ast_event_sub_list, ast_event_sub) ast_event_subs[AST_EVENT_TOTAL];
 
-static int ast_event_cmp(void *obj, void *arg, int flags);
-static int ast_event_hash_mwi(const void *obj, const int flags);
-static int ast_event_hash_devstate(const void *obj, const int flags);
-static int ast_event_hash_devstate_change(const void *obj, const int flags);
-
-#ifdef LOW_MEMORY
-#define NUM_CACHE_BUCKETS 17
-#else
-#define NUM_CACHE_BUCKETS 563
-#endif
-
-#define MAX_CACHE_ARGS 8
-
-struct cache_events {
-	/*!
-	 * \brief Container of cached events
-	 *
-	 * \details This gets allocated in ast_event_init() when Asterisk starts
-	 * for the event types declared as using the cache.
-	 */
-	struct ao2_container *container;
-	/*! \brief Event type specific hash function */
-	ao2_hash_fn *hash_fn;
-	/*!
-	 * \brief Information Elements used for caching
-	 *
-	 * \details This array is the set of information elements that will be unique
-	 * among all events in the cache for this event type.  When a new event gets
-	 * cached, a previous event with the same values for these information elements
-	 * will be replaced.
-	 */
-	enum ast_event_ie_type cache_args[MAX_CACHE_ARGS];
-};
-
-/*!
- * \brief Event types that are kept in the cache.
- */
-static struct cache_events ast_event_cache[AST_EVENT_TOTAL] = {
-	[AST_EVENT_MWI] = {
-		.hash_fn = ast_event_hash_mwi,
-		.cache_args = { AST_EVENT_IE_MAILBOX, AST_EVENT_IE_CONTEXT },
-	},
-	[AST_EVENT_DEVICE_STATE] = {
-		.hash_fn = ast_event_hash_devstate,
-		.cache_args = { AST_EVENT_IE_DEVICE, },
-	},
-	[AST_EVENT_DEVICE_STATE_CHANGE] = {
-		.hash_fn = ast_event_hash_devstate_change,
-		.cache_args = { AST_EVENT_IE_DEVICE, AST_EVENT_IE_EID, },
-	},
-};
-
-/*!
- * \brief Names of cached event types, for CLI tab completion
- *
- * \note These names must match what is in the event_names array.
- */
-static const char * const cached_event_types[] = { "MWI", "DeviceState", "DeviceStateChange", NULL };
-
-/*!
- * \brief Event Names
- */
-static const char * const event_names[AST_EVENT_TOTAL] = {
-	[AST_EVENT_ALL]                 = "All",
-	[AST_EVENT_CUSTOM]              = "Custom",
-	[AST_EVENT_MWI]                 = "MWI",
-	[AST_EVENT_SUB]                 = "Subscription",
-	[AST_EVENT_UNSUB]               = "Unsubscription",
-	[AST_EVENT_DEVICE_STATE]        = "DeviceState",
-	[AST_EVENT_DEVICE_STATE_CHANGE] = "DeviceStateChange",
-	[AST_EVENT_CEL]                 = "CEL",
-	[AST_EVENT_SECURITY]            = "Security",
-	[AST_EVENT_NETWORK_CHANGE]      = "NetworkChange",
-	[AST_EVENT_PRESENCE_STATE]      = "PresenceState",
-	[AST_EVENT_ACL_CHANGE]          = "ACLChange",
-	[AST_EVENT_PING]                = "Ping",
-};
-
 struct ie_map {
 	enum ast_event_ie_pltype ie_pltype;
 	const char *name;
@@ -225,16 +138,10 @@ struct ie_map {
  * \brief IE payload types and names
  */
 static const struct ie_map ie_maps[AST_EVENT_IE_TOTAL] = {
-	[AST_EVENT_IE_NEWMSGS]             = { AST_EVENT_IE_PLTYPE_UINT, "NewMessages" },
-	[AST_EVENT_IE_OLDMSGS]             = { AST_EVENT_IE_PLTYPE_UINT, "OldMessages" },
-	[AST_EVENT_IE_MAILBOX]             = { AST_EVENT_IE_PLTYPE_STR,  "Mailbox" },
 	[AST_EVENT_IE_UNIQUEID]            = { AST_EVENT_IE_PLTYPE_UINT, "UniqueID" },
 	[AST_EVENT_IE_EVENTTYPE]           = { AST_EVENT_IE_PLTYPE_UINT, "EventType" },
 	[AST_EVENT_IE_EXISTS]              = { AST_EVENT_IE_PLTYPE_UINT, "Exists" },
-	[AST_EVENT_IE_DEVICE]              = { AST_EVENT_IE_PLTYPE_STR,  "Device" },
-	[AST_EVENT_IE_STATE]               = { AST_EVENT_IE_PLTYPE_UINT, "State" },
 	[AST_EVENT_IE_CONTEXT]             = { AST_EVENT_IE_PLTYPE_STR,  "Context" },
-	[AST_EVENT_IE_EID]                 = { AST_EVENT_IE_PLTYPE_RAW,  "EntityID" },
 	[AST_EVENT_IE_CEL_EVENT_TYPE]      = { AST_EVENT_IE_PLTYPE_UINT, "CELEventType" },
 	[AST_EVENT_IE_CEL_EVENT_TIME]      = { AST_EVENT_IE_PLTYPE_UINT, "CELEventTime" },
 	[AST_EVENT_IE_CEL_EVENT_TIME_USEC] = { AST_EVENT_IE_PLTYPE_UINT, "CELEventTimeUSec" },
@@ -257,7 +164,6 @@ static const struct ie_map ie_maps[AST_EVENT_IE_TOTAL] = {
 	[AST_EVENT_IE_CEL_LINKEDID]        = { AST_EVENT_IE_PLTYPE_STR,  "CELLinkedID" },
 	[AST_EVENT_IE_CEL_PEERACCT]        = { AST_EVENT_IE_PLTYPE_STR,  "CELPeerAcct" },
 	[AST_EVENT_IE_CEL_EXTRA]           = { AST_EVENT_IE_PLTYPE_STR,  "CELExtra" },
-	[AST_EVENT_IE_SECURITY_EVENT]      = { AST_EVENT_IE_PLTYPE_STR,  "SecurityEvent" },
 	[AST_EVENT_IE_EVENT_VERSION]       = { AST_EVENT_IE_PLTYPE_UINT, "EventVersion" },
 	[AST_EVENT_IE_SERVICE]             = { AST_EVENT_IE_PLTYPE_STR,  "Service" },
 	[AST_EVENT_IE_MODULE]              = { AST_EVENT_IE_PLTYPE_STR,  "Module" },
@@ -280,43 +186,8 @@ static const struct ie_map ie_maps[AST_EVENT_IE_TOTAL] = {
 	[AST_EVENT_IE_RECEIVED_HASH]       = { AST_EVENT_IE_PLTYPE_STR,  "ReceivedHash" },
 	[AST_EVENT_IE_USING_PASSWORD]      = { AST_EVENT_IE_PLTYPE_UINT, "UsingPassword" },
 	[AST_EVENT_IE_ATTEMPTED_TRANSPORT] = { AST_EVENT_IE_PLTYPE_STR,  "AttemptedTransport" },
-	[AST_EVENT_IE_CACHABLE]            = { AST_EVENT_IE_PLTYPE_UINT, "Cachable" },
-	[AST_EVENT_IE_PRESENCE_PROVIDER]   = { AST_EVENT_IE_PLTYPE_STR,  "PresenceProvider" },
-	[AST_EVENT_IE_PRESENCE_STATE]      = { AST_EVENT_IE_PLTYPE_UINT, "PresenceState" },
-	[AST_EVENT_IE_PRESENCE_SUBTYPE]    = { AST_EVENT_IE_PLTYPE_STR,  "PresenceSubtype" },
-	[AST_EVENT_IE_PRESENCE_MESSAGE]    = { AST_EVENT_IE_PLTYPE_STR,  "PresenceMessage" },
 };
 
-const char *ast_event_get_type_name(const struct ast_event *event)
-{
-	enum ast_event_type type;
-
-	type = ast_event_get_type(event);
-
-	if (type < 0 || type >= ARRAY_LEN(event_names)) {
-		ast_log(LOG_ERROR, "Invalid event type - '%d'\n", type);
-		return "";
-	}
-
-	return event_names[type];
-}
-
-int ast_event_str_to_event_type(const char *str, enum ast_event_type *event_type)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_LEN(event_names); i++) {
-		if (ast_strlen_zero(event_names[i]) || strcasecmp(event_names[i], str)) {
-			continue;
-		}
-
-		*event_type = i;
-		return 0;
-	}
-
-	return -1;
-}
-
 const char *ast_event_get_ie_type_name(enum ast_event_ie_type ie_type)
 {
 	if (ie_type <= 0 || ie_type >= ARRAY_LEN(ie_maps)) {
@@ -337,22 +208,6 @@ enum ast_event_ie_pltype ast_event_get_ie_pltype(enum ast_event_ie_type ie_type)
 	return ie_maps[ie_type].ie_pltype;
 }
 
-int ast_event_str_to_ie_type(const char *str, enum ast_event_ie_type *ie_type)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_LEN(ie_maps); i++) {
-		if (strcasecmp(ie_maps[i].name, str)) {
-			continue;
-		}
-
-		*ie_type = i;
-		return 0;
-	}
-
-	return -1;
-}
-
 size_t ast_event_get_size(const struct ast_event *event)
 {
 	size_t res;
@@ -372,8 +227,6 @@ static void ast_event_ie_val_destroy(struct ast_event_ie_val *ie_val)
 		ast_free(ie_val->payload.raw);
 		break;
 	case AST_EVENT_IE_PLTYPE_UINT:
-	case AST_EVENT_IE_PLTYPE_BITFLAGS:
-	case AST_EVENT_IE_PLTYPE_EXISTS:
 	case AST_EVENT_IE_PLTYPE_UNKNOWN:
 		break;
 	}
@@ -412,10 +265,6 @@ static int match_sub_ie_val_to_event(const struct ast_event_ie_val *sub_ie_val,
 	}
 
 	if (sub_ie_val->ie_pltype != event_ie_val->ie_pltype) {
-		if (sub_ie_val->ie_pltype == AST_EVENT_IE_PLTYPE_EXISTS) {
-			/* The subscription only cares that this ie exists. */
-			return 1;
-		}
 		/* Payload types do not match. */
 		return 0;
 	}
@@ -424,21 +273,10 @@ static int match_sub_ie_val_to_event(const struct ast_event_ie_val *sub_ie_val,
 	case AST_EVENT_IE_PLTYPE_UINT:
 		res = (sub_ie_val->payload.uint == event_ie_val->payload.uint);
 		break;
-	case AST_EVENT_IE_PLTYPE_BITFLAGS:
-		/*
-		 * If the subscriber has requested *any* of the bitflags we are providing,
-		 * then it's a match.
-		 */
-		res = (sub_ie_val->payload.uint & event_ie_val->payload.uint);
-		break;
 	case AST_EVENT_IE_PLTYPE_STR:
 	{
 		const char *substr = sub_ie_val->payload.str;
 		const char *estr = event_ie_val->payload.str;
-		if (sub_ie_val->ie_type == AST_EVENT_IE_DEVICE) {
-			substr = ast_tech_to_upper(ast_strdupa(substr));
-			estr = ast_tech_to_upper(ast_strdupa(estr));
-		}
 		res = !strcmp(substr, estr);
 		break;
 	}
@@ -447,9 +285,6 @@ static int match_sub_ie_val_to_event(const struct ast_event_ie_val *sub_ie_val,
 			&& !memcmp(sub_ie_val->payload.raw, event_ie_val->payload.raw,
 				sub_ie_val->raw_datalen));
 		break;
-	case AST_EVENT_IE_PLTYPE_EXISTS:
-		/* Should never get here since check_ie_vals cannot have this type. */
-		break;
 	case AST_EVENT_IE_PLTYPE_UNKNOWN:
 		/*
 		 * Should never be in a subscription event ie val list and
@@ -497,10 +332,6 @@ enum ast_event_subscriber_res ast_event_check_subscriber(enum ast_event_type typ
 			ie_value->payload.uint = va_arg(ap, uint32_t);
 			insert = 1;
 			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ie_value->payload.uint = va_arg(ap, uint32_t);
-			insert = 1;
-			break;
 		case AST_EVENT_IE_PLTYPE_STR:
 			ie_value->payload.str = va_arg(ap, const char *);
 			insert = 1;
@@ -517,7 +348,6 @@ enum ast_event_subscriber_res ast_event_check_subscriber(enum ast_event_type typ
 			break;
 		}
 		case AST_EVENT_IE_PLTYPE_UNKNOWN:
-		case AST_EVENT_IE_PLTYPE_EXISTS:
 			/* Unsupported payload type. */
 			break;
 		}
@@ -583,24 +413,13 @@ static int match_ie_val(const struct ast_event *event,
 		return (val == ast_event_get_ie_uint(event, ie_val->ie_type)) ? 1 : 0;
 	}
 
-	case AST_EVENT_IE_PLTYPE_BITFLAGS:
-	{
-		uint32_t flags = event2 ? ast_event_get_ie_uint(event2, ie_val->ie_type) : ie_val->payload.uint;
-
-		/*
-		 * If the subscriber has requested *any* of the bitflags that this event provides,
-		 * then it's a match.
-		 */
-		return (flags & ast_event_get_ie_bitflags(event, ie_val->ie_type)) ? 1 : 0;
-	}
-
 	case AST_EVENT_IE_PLTYPE_STR:
 	{
 		const char *str;
 		uint32_t hash;
 
-		hash = event2 ? ast_event_get_ie_str_hash(event2, ie_val->ie_type) : ie_val->payload.hash;
-		if (hash != ast_event_get_ie_str_hash(event, ie_val->ie_type)) {
+		hash = event2 ? event_get_ie_str_hash(event2, ie_val->ie_type) : ie_val->payload.hash;
+		if (hash != event_get_ie_str_hash(event, ie_val->ie_type)) {
 			return 0;
 		}
 
@@ -610,11 +429,6 @@ static int match_ie_val(const struct ast_event *event,
 			e1str = ast_event_get_ie_str(event, ie_val->ie_type);
 			e2str = str;
 
-			if (ie_val->ie_type == AST_EVENT_IE_DEVICE) {
-				e1str = ast_tech_to_upper(ast_strdupa(e1str));
-				e2str = ast_tech_to_upper(ast_strdupa(e2str));
-			}
-
 			if (!strcmp(e1str, e2str)) {
 				return 1;
 			}
@@ -625,17 +439,12 @@ static int match_ie_val(const struct ast_event *event,
 
 	case AST_EVENT_IE_PLTYPE_RAW:
 	{
-		const void *buf = event2 ? ast_event_get_ie_raw(event2, ie_val->ie_type) : ie_val->payload.raw;
-		uint16_t ie_payload_len = event2 ? ast_event_get_ie_raw_payload_len(event2, ie_val->ie_type) : ie_val->raw_datalen;
+		const void *buf = event2 ? event_get_ie_raw(event2, ie_val->ie_type) : ie_val->payload.raw;
+		uint16_t ie_payload_len = event2 ? event_get_ie_raw_payload_len(event2, ie_val->ie_type) : ie_val->raw_datalen;
 
 		return (buf
-			&& ie_payload_len == ast_event_get_ie_raw_payload_len(event, ie_val->ie_type)
-			&& !memcmp(buf, ast_event_get_ie_raw(event, ie_val->ie_type), ie_payload_len)) ? 1 : 0;
-	}
-
-	case AST_EVENT_IE_PLTYPE_EXISTS:
-	{
-		return ast_event_get_ie_raw(event, ie_val->ie_type) ? 1 : 0;
+			&& ie_payload_len == event_get_ie_raw_payload_len(event, ie_val->ie_type)
+			&& !memcmp(buf, event_get_ie_raw(event, ie_val->ie_type), ie_payload_len)) ? 1 : 0;
 	}
 
 	case AST_EVENT_IE_PLTYPE_UNKNOWN:
@@ -645,38 +454,6 @@ static int match_ie_val(const struct ast_event *event,
 	return 0;
 }
 
-static int dump_cache_cb(void *obj, void *arg, int flags)
-{
-	const struct ast_event_ref *event_ref = obj;
-	const struct ast_event *event = event_ref->event;
-	const struct ast_event_sub *event_sub = arg;
-	struct ast_event_ie_val *ie_val = NULL;
-
-	AST_LIST_TRAVERSE(&event_sub->ie_vals, ie_val, entry) {
-		if (!match_ie_val(event, ie_val, NULL)) {
-			break;
-		}
-	}
-
-	if (!ie_val) {
-		/* All parameters were matched on this cache entry, so dump it */
-		event_sub->cb(event, event_sub->userdata);
-	}
-
-	return 0;
-}
-
-/*! \brief Dump the event cache for the subscribed event type */
-void ast_event_dump_cache(const struct ast_event_sub *event_sub)
-{
-	if (!ast_event_cache[event_sub->type].container) {
-		return;
-	}
-
-	ao2_callback(ast_event_cache[event_sub->type].container, OBJ_NODATA,
-			dump_cache_cb, (void *) event_sub);
-}
-
 static struct ast_event *gen_sub_event(struct ast_event_sub *sub)
 {
 	struct ast_event_ie_val *ie_val;
@@ -694,20 +471,14 @@ static struct ast_event *gen_sub_event(struct ast_event_sub *sub)
 		switch (ie_val->ie_pltype) {
 		case AST_EVENT_IE_PLTYPE_UNKNOWN:
 			break;
-		case AST_EVENT_IE_PLTYPE_EXISTS:
-			ast_event_append_ie_uint(&event, AST_EVENT_IE_EXISTS, ie_val->ie_type);
-			break;
 		case AST_EVENT_IE_PLTYPE_UINT:
 			ast_event_append_ie_uint(&event, ie_val->ie_type, ie_val->payload.uint);
 			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ast_event_append_ie_bitflags(&event, ie_val->ie_type, ie_val->payload.uint);
-			break;
 		case AST_EVENT_IE_PLTYPE_STR:
 			ast_event_append_ie_str(&event, ie_val->ie_type, ie_val->payload.str);
 			break;
 		case AST_EVENT_IE_PLTYPE_RAW:
-			ast_event_append_ie_raw(&event, ie_val->ie_type, ie_val->payload.raw, ie_val->raw_datalen);
+			event_append_ie_raw(&event, ie_val->ie_type, ie_val->payload.raw, ie_val->raw_datalen);
 			break;
 		}
 		if (!event)
@@ -800,49 +571,6 @@ int ast_event_sub_append_ie_uint(struct ast_event_sub *sub,
 	return 0;
 }
 
-int ast_event_sub_append_ie_bitflags(struct ast_event_sub *sub,
-	enum ast_event_ie_type ie_type, uint32_t flags)
-{
-	struct ast_event_ie_val *ie_val;
-
-	if (ie_type <= 0 || ie_type >= AST_EVENT_IE_TOTAL) {
-		return -1;
-	}
-
-	if (!(ie_val = ast_calloc(1, sizeof(*ie_val)))) {
-		return -1;
-	}
-
-	ie_val->ie_type = ie_type;
-	ie_val->payload.uint = flags;
-	ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_BITFLAGS;
-
-	AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
-	return 0;
-}
-
-int ast_event_sub_append_ie_exists(struct ast_event_sub *sub,
-	enum ast_event_ie_type ie_type)
-{
-	struct ast_event_ie_val *ie_val;
-
-	if (ie_type <= 0 || ie_type >= AST_EVENT_IE_TOTAL) {
-		return -1;
-	}
-
-	if (!(ie_val = ast_calloc(1, sizeof(*ie_val)))) {
-		return -1;
-	}
-
-	ie_val->ie_type = ie_type;
-	ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_EXISTS;
-
-	AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
-	return 0;
-}
-
 int ast_event_sub_append_ie_str(struct ast_event_sub *sub,
 	enum ast_event_ie_type ie_type, const char *str)
 {
@@ -864,13 +592,7 @@ int ast_event_sub_append_ie_str(struct ast_event_sub *sub,
 		return -1;
 	}
 
-	if (ie_type == AST_EVENT_IE_DEVICE) {
-		char *uppertech = ast_strdupa(str);
-		ast_tech_to_upper(uppertech);
-		ie_val->payload.hash = ast_str_hash(uppertech);
-	} else {
-		ie_val->payload.hash = ast_str_hash(str);
-	}
+	ie_val->payload.hash = ast_str_hash(str);
 
 	AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
 
@@ -957,12 +679,6 @@ struct ast_event_sub *ast_event_subscribe(enum ast_event_type type, ast_event_cb
 			ast_event_sub_append_ie_uint(sub, ie_type, unsigned_int);
 			break;
 		}
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-		{
-			uint32_t unsigned_int = va_arg(ap, uint32_t);
-			ast_event_sub_append_ie_bitflags(sub, ie_type, unsigned_int);
-			break;
-		}
 		case AST_EVENT_IE_PLTYPE_STR:
 		{
 			const char *str = va_arg(ap, const char *);
@@ -976,9 +692,6 @@ struct ast_event_sub *ast_event_subscribe(enum ast_event_type type, ast_event_cb
 			ast_event_sub_append_ie_raw(sub, ie_type, data, data_len);
 			break;
 		}
-		case AST_EVENT_IE_PLTYPE_EXISTS:
-			ast_event_sub_append_ie_exists(sub, ie_type);
-			break;
 		}
 	}
 	va_end(ap);
@@ -999,33 +712,13 @@ void ast_event_sub_destroy(struct ast_event_sub *sub)
 	ast_free(sub);
 }
 
-const char *ast_event_subscriber_get_description(struct ast_event_sub *sub)
-{
-	return sub ? sub->description : NULL;
-}
-
 struct ast_event_sub *ast_event_unsubscribe(struct ast_event_sub *sub)
 {
-	struct ast_event *event;
 
 	AST_RWDLLIST_WRLOCK(&ast_event_subs[sub->type]);
 	AST_DLLIST_REMOVE(&ast_event_subs[sub->type], sub, entry);
 	AST_RWDLLIST_UNLOCK(&ast_event_subs[sub->type]);
 
-	if (ast_event_check_subscriber(AST_EVENT_UNSUB,
-		AST_EVENT_IE_EVENTTYPE, AST_EVENT_IE_PLTYPE_UINT, sub->type,
-		AST_EVENT_IE_END) != AST_EVENT_SUB_NONE) {
-
-		event = ast_event_new(AST_EVENT_UNSUB,
-			AST_EVENT_IE_UNIQUEID,    AST_EVENT_IE_PLTYPE_UINT, sub->uniqueid,
-			AST_EVENT_IE_EVENTTYPE,   AST_EVENT_IE_PLTYPE_UINT, sub->type,
-			AST_EVENT_IE_DESCRIPTION, AST_EVENT_IE_PLTYPE_STR, sub->description,
-			AST_EVENT_IE_END);
-		if (event && ast_event_queue(event)) {
-			ast_event_destroy(event);
-		}
-	}
-
 	ast_event_sub_destroy(sub);
 
 	return NULL;
@@ -1063,11 +756,6 @@ uint32_t ast_event_iterator_get_ie_uint(struct ast_event_iterator *iterator)
 	return ntohl(get_unaligned_uint32(iterator->ie->ie_payload));
 }
 
-uint32_t ast_event_iterator_get_ie_bitflags(struct ast_event_iterator *iterator)
-{
-	return ntohl(get_unaligned_uint32(iterator->ie->ie_payload));
-}
-
 const char *ast_event_iterator_get_ie_str(struct ast_event_iterator *iterator)
 {
 	const struct ast_event_ie_str_payload *str_payload;
@@ -1077,12 +765,12 @@ const char *ast_event_iterator_get_ie_str(struct ast_event_iterator *iterator)
 	return str_payload ? str_payload->str : NULL;
 }
 
-void *ast_event_iterator_get_ie_raw(struct ast_event_iterator *iterator)
+static void *event_iterator_get_ie_raw(struct ast_event_iterator *iterator)
 {
 	return iterator->ie->ie_payload;
 }
 
-uint16_t ast_event_iterator_get_ie_raw_payload_len(struct ast_event_iterator *iterator)
+static uint16_t event_iterator_get_ie_raw_payload_len(struct ast_event_iterator *iterator)
 {
 	return ntohs(iterator->ie->ie_payload_len);
 }
@@ -1096,25 +784,16 @@ uint32_t ast_event_get_ie_uint(const struct ast_event *event, enum ast_event_ie_
 {
 	const uint32_t *ie_val;
 
-	ie_val = ast_event_get_ie_raw(event, ie_type);
+	ie_val = event_get_ie_raw(event, ie_type);
 
 	return ie_val ? ntohl(get_unaligned_uint32(ie_val)) : 0;
 }
 
-uint32_t ast_event_get_ie_bitflags(const struct ast_event *event, enum ast_event_ie_type ie_type)
-{
-	const uint32_t *ie_val;
-
-	ie_val = ast_event_get_ie_raw(event, ie_type);
-
-	return ie_val ? ntohl(get_unaligned_uint32(ie_val)) : 0;
-}
-
-uint32_t ast_event_get_ie_str_hash(const struct ast_event *event, enum ast_event_ie_type ie_type)
+static uint32_t event_get_ie_str_hash(const struct ast_event *event, enum ast_event_ie_type ie_type)
 {
 	const struct ast_event_ie_str_payload *str_payload;
 
-	str_payload = ast_event_get_ie_raw(event, ie_type);
+	str_payload = event_get_ie_raw(event, ie_type);
 
 	return str_payload ? str_payload->hash : 0;
 }
@@ -1123,33 +802,33 @@ const char *ast_event_get_ie_str(const struct ast_event *event, enum ast_event_i
 {
 	const struct ast_event_ie_str_payload *str_payload;
 
-	str_payload = ast_event_get_ie_raw(event, ie_type);
+	str_payload = event_get_ie_raw(event, ie_type);
 
 	return str_payload ? str_payload->str : NULL;
 }
 
-const void *ast_event_get_ie_raw(const struct ast_event *event, enum ast_event_ie_type ie_type)
+static const void *event_get_ie_raw(const struct ast_event *event, enum ast_event_ie_type ie_type)
 {
 	struct ast_event_iterator iterator;
 	int res;
 
 	for (res = ast_event_iterator_init(&iterator, event); !res; res = ast_event_iterator_next(&iterator)) {
 		if (ast_event_iterator_get_ie_type(&iterator) == ie_type) {
-			return ast_event_iterator_get_ie_raw(&iterator);
+			return event_iterator_get_ie_raw(&iterator);
 		}
 	}
 
 	return NULL;
 }
 
-uint16_t ast_event_get_ie_raw_payload_len(const struct ast_event *event, enum ast_event_ie_type ie_type)
+static uint16_t event_get_ie_raw_payload_len(const struct ast_event *event, enum ast_event_ie_type ie_type)
 {
 	struct ast_event_iterator iterator;
 	int res;
 
 	for (res = ast_event_iterator_init(&iterator, event); !res; res = ast_event_iterator_next(&iterator)) {
 		if (ast_event_iterator_get_ie_type(&iterator) == ie_type) {
-			return ast_event_iterator_get_ie_raw_payload_len(&iterator);
+			return event_iterator_get_ie_raw_payload_len(&iterator);
 		}
 	}
 
@@ -1166,32 +845,19 @@ int ast_event_append_ie_str(struct ast_event **event, enum ast_event_ie_type ie_
 	str_payload = ast_alloca(payload_len);
 
 	strcpy(str_payload->str, str);
-	if (ie_type == AST_EVENT_IE_DEVICE) {
-		char *uppertech = ast_strdupa(str);
-		ast_tech_to_upper(uppertech);
-		str_payload->hash = ast_str_hash(uppertech);
-	} else {
-		str_payload->hash = ast_str_hash(str);
-	}
+	str_payload->hash = ast_str_hash(str);
 
-	return ast_event_append_ie_raw(event, ie_type, str_payload, payload_len);
+	return event_append_ie_raw(event, ie_type, str_payload, payload_len);
 }
 
 int ast_event_append_ie_uint(struct ast_event **event, enum ast_event_ie_type ie_type,
 	uint32_t data)
 {
 	data = htonl(data);
-	return ast_event_append_ie_raw(event, ie_type, &data, sizeof(data));
+	return event_append_ie_raw(event, ie_type, &data, sizeof(data));
 }
 
-int ast_event_append_ie_bitflags(struct ast_event **event, enum ast_event_ie_type ie_type,
-	uint32_t flags)
-{
-	flags = htonl(flags);
-	return ast_event_append_ie_raw(event, ie_type, &flags, sizeof(flags));
-}
-
-int ast_event_append_ie_raw(struct ast_event **event, enum ast_event_ie_type ie_type,
+static int event_append_ie_raw(struct ast_event **event, enum ast_event_ie_type ie_type,
 	const void *data, size_t data_len)
 {
 	struct ast_event_ie *ie;
@@ -1246,10 +912,6 @@ struct ast_event *ast_event_new(enum ast_event_type type, ...)
 			ie_value->payload.uint = va_arg(ap, uint32_t);
 			insert = 1;
 			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ie_value->payload.uint = va_arg(ap, uint32_t);
-			insert = 1;
-			break;
 		case AST_EVENT_IE_PLTYPE_STR:
 			ie_value->payload.str = va_arg(ap, const char *);
 			insert = 1;
@@ -1265,7 +927,6 @@ struct ast_event *ast_event_new(enum ast_event_type type, ...)
 			break;
 		}
 		case AST_EVENT_IE_PLTYPE_UNKNOWN:
-		case AST_EVENT_IE_PLTYPE_EXISTS:
 			break;
 		}
 
@@ -1292,14 +953,10 @@ struct ast_event *ast_event_new(enum ast_event_type type, ...)
 		case AST_EVENT_IE_PLTYPE_UINT:
 			ast_event_append_ie_uint(&event, ie_val->ie_type, ie_val->payload.uint);
 			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ast_event_append_ie_bitflags(&event, ie_val->ie_type, ie_val->payload.uint);
-			break;
 		case AST_EVENT_IE_PLTYPE_RAW:
-			ast_event_append_ie_raw(&event, ie_val->ie_type,
+			event_append_ie_raw(&event, ie_val->ie_type,
 					ie_val->payload.raw, ie_val->raw_datalen);
 			break;
-		case AST_EVENT_IE_PLTYPE_EXISTS:
 		case AST_EVENT_IE_PLTYPE_UNKNOWN:
 			break;
 		}
@@ -1310,199 +967,31 @@ struct ast_event *ast_event_new(enum ast_event_type type, ...)
 		}
 	}
 
-	if (!ast_event_get_ie_raw(event, AST_EVENT_IE_EID)) {
-		/* If the event is originating on this server, add the server's
-		 * entity ID to the event. */
-		ast_event_append_eid(&event);
-	}
-
 	return event;
 }
 
-int ast_event_append_eid(struct ast_event **event)
-{
-	return ast_event_append_ie_raw(event, AST_EVENT_IE_EID,
-			&ast_eid_default, sizeof(ast_eid_default));
-}
-
 void ast_event_destroy(struct ast_event *event)
 {
 	ast_free(event);
 }
 
-static void ast_event_ref_destroy(void *obj)
-{
-	struct ast_event_ref *event_ref = obj;
-
-	ast_event_destroy(event_ref->event);
-}
-
-static struct ast_event *ast_event_dup(const struct ast_event *event)
-{
-	struct ast_event *dup_event;
-	uint16_t event_len;
-
-	event_len = ast_event_get_size(event);
-
-	if (!(dup_event = ast_calloc(1, event_len))) {
-		return NULL;
-	}
-
-	memcpy(dup_event, event, event_len);
-
-	return dup_event;
-}
-
-struct ast_event *ast_event_get_cached(enum ast_event_type type, ...)
-{
-	va_list ap;
-	enum ast_event_ie_type ie_type;
-	struct ast_event *dup_event = NULL;
-	struct ast_event_ref *cached_event_ref;
-	struct ast_event *cache_arg_event;
-	struct ast_event_ref tmp_event_ref = {
-		.event = NULL,
-	};
-	struct ao2_container *container = NULL;
-
-	if (type >= AST_EVENT_TOTAL) {
-		ast_log(LOG_ERROR, "%u is an invalid type!\n", type);
-		return NULL;
-	}
-
-	if (!(container = ast_event_cache[type].container)) {
-		ast_log(LOG_ERROR, "%u is not a cached event type\n", type);
-		return NULL;
-	}
-
-	if (!(cache_arg_event = ast_event_new(type, AST_EVENT_IE_END))) {
-		return NULL;
-	}
-
-	va_start(ap, type);
-	for (ie_type = va_arg(ap, enum ast_event_ie_type);
-		ie_type != AST_EVENT_IE_END;
-		ie_type = va_arg(ap, enum ast_event_ie_type))
-	{
-		enum ast_event_ie_pltype ie_pltype;
-
-		ie_pltype = va_arg(ap, enum ast_event_ie_pltype);
-
-		switch (ie_pltype) {
-		case AST_EVENT_IE_PLTYPE_UINT:
-			ast_event_append_ie_uint(&cache_arg_event, ie_type, va_arg(ap, uint32_t));
-			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ast_event_append_ie_bitflags(&cache_arg_event, ie_type, va_arg(ap, uint32_t));
-			break;
-		case AST_EVENT_IE_PLTYPE_STR:
-			ast_event_append_ie_str(&cache_arg_event, ie_type, va_arg(ap, const char *));
-			break;
-		case AST_EVENT_IE_PLTYPE_RAW:
-		{
-			void *data = va_arg(ap, void *);
-			size_t datalen = va_arg(ap, size_t);
-			ast_event_append_ie_raw(&cache_arg_event, ie_type, data, datalen);
-			break;
-		}
-		case AST_EVENT_IE_PLTYPE_EXISTS:
-			ast_log(LOG_WARNING, "PLTYPE_EXISTS not supported by this function\n");
-			break;
-		case AST_EVENT_IE_PLTYPE_UNKNOWN:
-			break;
-		}
-	}
-	va_end(ap);
-
-	tmp_event_ref.event = cache_arg_event;
-
-	cached_event_ref = ao2_find(container, &tmp_event_ref, OBJ_POINTER);
-
-	ast_event_destroy(cache_arg_event);
-	cache_arg_event = NULL;
-
-	if (cached_event_ref) {
-		dup_event = ast_event_dup(cached_event_ref->event);
-		ao2_ref(cached_event_ref, -1);
-		cached_event_ref = NULL;
-	}
-
-	return dup_event;
-}
-
-static struct ast_event_ref *alloc_event_ref(void)
-{
-	return ao2_alloc(sizeof(struct ast_event_ref), ast_event_ref_destroy);
-}
-
-/*!
- * \internal
- * \brief Update the given event cache with the new event.
- * \since 1.8
- *
- * \param cache Event cache container to update.
- * \param event New event to put in the cache.
- *
- * \return Nothing
- */
-static void event_update_cache(struct ao2_container *cache, struct ast_event *event)
-{
-	struct ast_event_ref tmp_event_ref = {
-		.event = event,
-	};
-	struct ast_event *dup_event;
-	struct ast_event_ref *event_ref;
-
-	/* Hold the cache container lock while it is updated. */
-	ao2_lock(cache);
-
-	/* Remove matches from the cache. */
-	ao2_callback(cache, OBJ_POINTER | OBJ_UNLINK | OBJ_MULTIPLE | OBJ_NODATA,
-		ast_event_cmp, &tmp_event_ref);
-
-	/* Save a copy of the event in the cache. */
-	dup_event = ast_event_dup(event);
-	if (dup_event) {
-		event_ref = alloc_event_ref();
-		if (event_ref) {
-			event_ref->event = dup_event;
-			ao2_link(cache, event_ref);
-			ao2_ref(event_ref, -1);
-		} else {
-			ast_event_destroy(dup_event);
-		}
-	}
-
-	ao2_unlock(cache);
-}
-
 static int handle_event(void *data)
 {
-	struct ast_event_ref *event_ref = data;
+	struct ast_event *event = data;
 	struct ast_event_sub *sub;
 	const enum ast_event_type event_types[] = {
-		ntohs(event_ref->event->type),
+		ntohs(event->type),
 		AST_EVENT_ALL
 	};
 	int i;
 
-	if (event_ref->cache) {
-		struct ao2_container *container;
-		container = ast_event_cache[ast_event_get_type(event_ref->event)].container;
-		if (!container) {
-			ast_log(LOG_WARNING, "cache requested for non-cached event type\n");
-		} else {
-			event_update_cache(container, event_ref->event);
-		}
-	}
-
 	for (i = 0; i < ARRAY_LEN(event_types); i++) {
 		AST_RWDLLIST_RDLOCK(&ast_event_subs[event_types[i]]);
 		AST_RWDLLIST_TRAVERSE(&ast_event_subs[event_types[i]], sub, entry) {
 			struct ast_event_ie_val *ie_val;
 
 			AST_LIST_TRAVERSE(&sub->ie_vals, ie_val, entry) {
-				if (!match_ie_val(event_ref->event, ie_val, NULL)) {
+				if (!match_ie_val(event, ie_val, NULL)) {
 					/* The current subscription ie did not match an event ie. */
 					break;
 				}
@@ -1511,19 +1000,18 @@ static int handle_event(void *data)
 				/* The event did not match this subscription. */
 				continue;
 			}
-			sub->cb(event_ref->event, sub->userdata);
+			sub->cb(event, sub->userdata);
 		}
 		AST_RWDLLIST_UNLOCK(&ast_event_subs[event_types[i]]);
 	}
 
-	ao2_ref(event_ref, -1);
+	ast_event_destroy(event);
 
 	return 0;
 }
 
-static int _ast_event_queue(struct ast_event *event, unsigned int cache)
+int ast_event_queue(struct ast_event *event)
 {
-	struct ast_event_ref *event_ref;
 	uint16_t host_event_type;
 	int res;
 
@@ -1543,271 +1031,19 @@ static int _ast_event_queue(struct ast_event *event, unsigned int cache)
 		return 0;
 	}
 
-	if (!(event_ref = alloc_event_ref())) {
-		return -1;
-	}
-
-	event_ref->event = event;
-	event_ref->cache = cache;
-
-	res = ast_taskprocessor_push(event_dispatcher, handle_event, event_ref);
+	res = ast_taskprocessor_push(event_dispatcher, handle_event, event);
 	if (res) {
-		event_ref->event = NULL;
-		ao2_ref(event_ref, -1);
-	}
-	return res;
-}
-
-int ast_event_queue(struct ast_event *event)
-{
-	return _ast_event_queue(event, 0);
-}
-
-int ast_event_queue_and_cache(struct ast_event *event)
-{
-	return _ast_event_queue(event, 1);
-}
-
-static int ast_event_hash_mwi(const void *obj, const int flags)
-{
-	const struct ast_event *event = obj;
-	const char *mailbox = ast_event_get_ie_str(event, AST_EVENT_IE_MAILBOX);
-	const char *context = ast_event_get_ie_str(event, AST_EVENT_IE_CONTEXT);
-
-	return ast_str_hash_add(context, ast_str_hash(mailbox));
-}
-
-/*!
- * \internal
- * \brief Hash function for AST_EVENT_DEVICE_STATE
- *
- * \param[in] obj an ast_event
- * \param[in] flags unused
- *
- * \return hash value
- */
-static int ast_event_hash_devstate(const void *obj, const int flags)
-{
-	const struct ast_event *event = obj;
-
-	return ast_str_hash(ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE));
-}
-
-/*!
- * \internal
- * \brief Hash function for AST_EVENT_DEVICE_STATE_CHANGE
- *
- * \param[in] obj an ast_event
- * \param[in] flags unused
- *
- * \return hash value
- */
-static int ast_event_hash_devstate_change(const void *obj, const int flags)
-{
-	const struct ast_event *event = obj;
-
-	return ast_str_hash(ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE));
-}
-
-static int ast_event_hash(const void *obj, const int flags)
-{
-	const struct ast_event_ref *event_ref;
-	const struct ast_event *event;
-	ao2_hash_fn *hash_fn;
-
-	event_ref = obj;
-	event = event_ref->event;
-
-	if (!(hash_fn = ast_event_cache[ast_event_get_type(event)].hash_fn)) {
-		return 0;
-	}
-
-	return hash_fn(event, flags);
-}
-
-/*!
- * \internal
- * \brief Compare two events
- *
- * \param[in] obj the first event, as an ast_event_ref
- * \param[in] arg the second event, as an ast_event_ref
- * \param[in] flags unused
- *
- * \pre Both events must be the same type.
- * \pre The event type must be declared as a cached event type in ast_event_cache
- *
- * \details This function takes two events, and determines if they are considered
- * equivalent.  The values of information elements specified in the cache arguments
- * for the event type are used to determine if the events are equivalent.
- *
- * \retval 0 No match
- * \retval CMP_MATCH The events are considered equivalent based on the cache arguments
- */
-static int ast_event_cmp(void *obj, void *arg, int flags)
-{
-	struct ast_event_ref *event_ref, *event_ref2;
-	struct ast_event *event, *event2;
-	int res = CMP_MATCH;
-	int i;
-	enum ast_event_ie_type *cache_args;
-
-	event_ref = obj;
-	event = event_ref->event;
-
-	event_ref2 = arg;
-	event2 = event_ref2->event;
-
-	cache_args = ast_event_cache[ast_event_get_type(event)].cache_args;
-
-	for (i = 0; i < ARRAY_LEN(ast_event_cache[0].cache_args) && cache_args[i]; i++) {
-		struct ast_event_ie_val ie_val = {
-			.ie_pltype = ast_event_get_ie_pltype(cache_args[i]),
-			.ie_type = cache_args[i],
-		};
-
-		if (!match_ie_val(event, &ie_val, event2)) {
-			res = 0;
-			break;
-		}
+		ast_event_destroy(event);
 	}
-
 	return res;
 }
 
-static void dump_raw_ie(struct ast_event_iterator *i, struct ast_cli_args *a)
-{
-	char eid_buf[32];
-	enum ast_event_ie_type ie_type;
-	const char *ie_type_name;
-
-	ie_type = ast_event_iterator_get_ie_type(i);
-	ie_type_name = ast_event_get_ie_type_name(ie_type);
-
-	switch (ie_type) {
-	case AST_EVENT_IE_EID:
-		ast_eid_to_str(eid_buf, sizeof(eid_buf), ast_event_iterator_get_ie_raw(i));
-		ast_cli(a->fd, "%.30s: %s\n", ie_type_name, eid_buf);
-		break;
-	default:
-		ast_cli(a->fd, "%s\n", ie_type_name);
-		break;
-	}
-}
-
-static int event_dump_cli(void *obj, void *arg, int flags)
-{
-	const struct ast_event_ref *event_ref = obj;
-	const struct ast_event *event = event_ref->event;
-	struct ast_cli_args *a = arg;
-	struct ast_event_iterator i;
-
-	if (ast_event_iterator_init(&i, event)) {
-		ast_cli(a->fd, "Failed to initialize event iterator.  :-(\n");
-		return 0;
-	}
-
-	ast_cli(a->fd, "Event: %s\n", ast_event_get_type_name(event));
-
-	do {
-		enum ast_event_ie_type ie_type;
-		enum ast_event_ie_pltype ie_pltype;
-		const char *ie_type_name;
-
-		ie_type = ast_event_iterator_get_ie_type(&i);
-		ie_type_name = ast_event_get_ie_type_name(ie_type);
-		ie_pltype = ast_event_get_ie_pltype(ie_type);
-
-		switch (ie_pltype) {
-		case AST_EVENT_IE_PLTYPE_UNKNOWN:
-		case AST_EVENT_IE_PLTYPE_EXISTS:
-			ast_cli(a->fd, "%s\n", ie_type_name);
-			break;
-		case AST_EVENT_IE_PLTYPE_STR:
-			ast_cli(a->fd, "%.30s: %s\n", ie_type_name,
-					ast_event_iterator_get_ie_str(&i));
-			break;
-		case AST_EVENT_IE_PLTYPE_UINT:
-			ast_cli(a->fd, "%.30s: %u\n", ie_type_name,
-					ast_event_iterator_get_ie_uint(&i));
-			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ast_cli(a->fd, "%.30s: %u\n", ie_type_name,
-					ast_event_iterator_get_ie_bitflags(&i));
-			break;
-		case AST_EVENT_IE_PLTYPE_RAW:
-			dump_raw_ie(&i, a);
-			break;
-		}
-	} while (!ast_event_iterator_next(&i));
-
-	ast_cli(a->fd, "\n");
-
-	return 0;
-}
-
-static char *event_dump_cache(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
-{
-	enum ast_event_type event_type;
-	enum ast_event_ie_type *cache_args;
-	int i;
-
-	switch (cmd) {
-	case CLI_INIT:
-		e->command = "event dump cache";
-		e->usage =
-			"Usage: event dump cache <event type>\n"
-			"       Dump all of the cached events for the given event type.\n"
-			"       This is primarily intended for debugging.\n";
-		return NULL;
-	case CLI_GENERATE:
-		if (a->pos == 3) {
-			return ast_cli_complete(a->word, cached_event_types, a->n);
-		}
-		return NULL;
-	case CLI_HANDLER:
-		break;
-	}
-
-	if (a->argc != e->args + 1) {
-		return CLI_SHOWUSAGE;
-	}
-
-	if (ast_event_str_to_event_type(a->argv[e->args], &event_type)) {
-		ast_cli(a->fd, "Invalid cached event type: '%s'\n", a->argv[e->args]);
-		return CLI_SHOWUSAGE;
-	}
-
-	if (!ast_event_cache[event_type].container) {
-		ast_cli(a->fd, "Event type '%s' has no cache.\n", a->argv[e->args]);
-		return CLI_SUCCESS;
-	}
-
-	ast_cli(a->fd, "Event Type: %s\n", a->argv[e->args]);
-	ast_cli(a->fd, "Cache Unique Keys:\n");
-	cache_args = ast_event_cache[event_type].cache_args;
-	for (i = 0; i < ARRAY_LEN(ast_event_cache[0].cache_args) && cache_args[i]; i++) {
-		ast_cli(a->fd, "--> %s\n", ast_event_get_ie_type_name(cache_args[i]));
-	}
-
-	ast_cli(a->fd, "\n--- Begin Cache Dump ---\n\n");
-	ao2_callback(ast_event_cache[event_type].container, OBJ_NODATA, event_dump_cli, a);
-	ast_cli(a->fd, "--- End Cache Dump ---\n\n");
-
-	return CLI_SUCCESS;
-}
-
-static struct ast_cli_entry event_cli[] = {
-	AST_CLI_DEFINE(event_dump_cache, "Dump the internal event cache (for debugging)"),
-};
-
 /*! \internal \brief Clean up resources on Asterisk shutdown */
 static void event_shutdown(void)
 {
 	struct ast_event_sub *sub;
 	int i;
 
-	ast_cli_unregister_multiple(event_cli, ARRAY_LEN(event_cli));
-
 	if (event_dispatcher) {
 		event_dispatcher = ast_taskprocessor_unreference(event_dispatcher);
 	}
@@ -1823,15 +1059,6 @@ static void event_shutdown(void)
 		AST_RWDLLIST_UNLOCK(&ast_event_subs[i]);
 		AST_RWDLLIST_HEAD_DESTROY(&ast_event_subs[i]);
 	}
-
-	for (i = 0; i < AST_EVENT_TOTAL; i++) {
-		if (!ast_event_cache[i].hash_fn) {
-			continue;
-		}
-		if (ast_event_cache[i].container) {
-			ao2_ref(ast_event_cache[i].container, -1);
-		}
-	}
 }
 
 int ast_event_init(void)
@@ -1842,24 +1069,10 @@ int ast_event_init(void)
 		AST_RWDLLIST_HEAD_INIT(&ast_event_subs[i]);
 	}
 
-	for (i = 0; i < AST_EVENT_TOTAL; i++) {
-		if (!ast_event_cache[i].hash_fn) {
-			/* This event type is not cached. */
-			continue;
-		}
-
-		if (!(ast_event_cache[i].container = ao2_container_alloc(NUM_CACHE_BUCKETS,
-				ast_event_hash, ast_event_cmp))) {
-			goto event_init_cleanup;
-		}
-	}
-
 	if (!(event_dispatcher = ast_taskprocessor_get("core_event_dispatcher", 0))) {
 		goto event_init_cleanup;
 	}
 
-	ast_cli_register_multiple(event_cli, ARRAY_LEN(event_cli));
-
 	ast_register_atexit(event_shutdown);
 
 	return 0;
@@ -1869,7 +1082,3 @@ event_init_cleanup:
 	return -1;
 }
 
-size_t ast_event_minimum_length(void)
-{
-	return sizeof(struct ast_event);
-}
diff --git a/main/manager.c b/main/manager.c
index 3302e8c308443807cb873700a1f864aeeb2e0ba1..d4d7f71b6b32e4a21128418f7c100340f569bb86 100644
--- a/main/manager.c
+++ b/main/manager.c
@@ -87,7 +87,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/astobj2.h"
 #include "asterisk/features.h"
 #include "asterisk/security_events.h"
-#include "asterisk/event.h"
 #include "asterisk/aoc.h"
 #include "asterisk/strings.h"
 #include "asterisk/stringfields.h"
diff --git a/main/pbx.c b/main/pbx.c
index 6bd6261cb58bf3b8894bb9626b0232c65f3d91a1..d5a46a5fdedfb339a7afa57d3dd572c3f493f06c 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -64,7 +64,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/app.h"
 #include "asterisk/devicestate.h"
 #include "asterisk/presencestate.h"
-#include "asterisk/event.h"
 #include "asterisk/hashtab.h"
 #include "asterisk/module.h"
 #include "asterisk/indications.h"
@@ -5181,7 +5180,7 @@ static void device_state_cb(void *unused, struct stasis_subscription *sub, struc
 		ao2_iterator_destroy(&cb_iter);
 
 		/* For extension callbacks */
-		/* extended callbacks are called when the state changed or when AST_EVENT_RINGING is
+		/* extended callbacks are called when the state changed or when AST_STATE_RINGING is
 		 * included. Normal callbacks are only called when the state changed.
 		 */
 		cb_iter = ao2_iterator_init(hint->callbacks, 0);
diff --git a/main/presencestate.c b/main/presencestate.c
index 3f394b635555bdae604da04b1f87c07f6d930449..b0a1959c0fb3b44dbdc74df27dc238b3ff4ab337 100644
--- a/main/presencestate.c
+++ b/main/presencestate.c
@@ -36,7 +36,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/presencestate.h"
 #include "asterisk/pbx.h"
 #include "asterisk/app.h"
-#include "asterisk/event.h"
 
 /*! \brief Device state strings for printing */
 static const struct {
diff --git a/main/security_events.c b/main/security_events.c
index eb2dae2fe72c931fe0ebd87fc1c70ebc9c652c5e..d115472917e9dd243bde4b99b348de68019b132c 100644
--- a/main/security_events.c
+++ b/main/security_events.c
@@ -657,13 +657,11 @@ static struct ast_json *alloc_security_event_json_object(const struct ast_securi
 	 *       This is true even if ast_json_object_set fails.
 	 */
 
-	/* AST_EVENT_IE_SECURITY_EVENT */
 	json_temp = ast_json_integer_create(sec->event_type);
-	if (!json_temp || ast_json_object_set(json_object, ast_event_get_ie_type_name(AST_EVENT_IE_SECURITY_EVENT), json_temp)) {
+	if (!json_temp || ast_json_object_set(json_object, "SecurityEvent", json_temp)) {
 		return NULL;
 	}
 
-	/* AST_EVENT_IE_EVENT_VERSION */
 	json_temp = ast_json_stringf("%d", sec->version);
 	if (!json_temp || ast_json_object_set(json_object, ast_event_get_ie_type_name(AST_EVENT_IE_EVENT_VERSION), json_temp)) {
 		return NULL;
diff --git a/res/parking/parking_applications.c b/res/parking/parking_applications.c
index 67605c2f7adef3227b22c2ccc0eaa90612fcd421..4b854759dcee95ea2a22d77b52f32e7f7fa639f3 100644
--- a/res/parking/parking_applications.c
+++ b/res/parking/parking_applications.c
@@ -30,7 +30,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "res_parking.h"
 #include "asterisk/config.h"
 #include "asterisk/config_options.h"
-#include "asterisk/event.h"
 #include "asterisk/utils.h"
 #include "asterisk/astobj2.h"
 #include "asterisk/features.h"
diff --git a/res/parking/parking_manager.c b/res/parking/parking_manager.c
index f952ff23a03af2bec710bb2264511993728ccdcd..dac19109091917090044392ab3b6793ae9c62380 100644
--- a/res/parking/parking_manager.c
+++ b/res/parking/parking_manager.c
@@ -30,7 +30,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "res_parking.h"
 #include "asterisk/config.h"
 #include "asterisk/config_options.h"
-#include "asterisk/event.h"
 #include "asterisk/utils.h"
 #include "asterisk/module.h"
 #include "asterisk/cli.h"
diff --git a/res/parking/parking_ui.c b/res/parking/parking_ui.c
index 2f54e8637e0fff6423587882b47012918de34a7b..55b2d5b45ec09674d59c2e6c28fb09961c0a9960 100644
--- a/res/parking/parking_ui.c
+++ b/res/parking/parking_ui.c
@@ -30,7 +30,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "res_parking.h"
 #include "asterisk/config.h"
 #include "asterisk/config_options.h"
-#include "asterisk/event.h"
 #include "asterisk/utils.h"
 #include "asterisk/module.h"
 #include "asterisk/cli.h"
diff --git a/res/res_jabber.c b/res/res_jabber.c
index 0e373e5e7dcea7abadd31a0f623839fd9b06d993..0e41cdf7782a2408ccfc3491582b0d1edcf170b2 100644
--- a/res/res_jabber.c
+++ b/res/res_jabber.c
@@ -70,7 +70,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/astobj.h"
 #include "asterisk/astdb.h"
 #include "asterisk/manager.h"
-#include "asterisk/event.h"
 #include "asterisk/devicestate.h"
 #include "asterisk/message.h"
 
@@ -3335,7 +3334,6 @@ static int aji_handle_pubsub_event(void *data, ikspak *pak)
 	int oldmsgs, newmsgs;
 	iks *item, *item_content;
 	struct ast_eid pubsub_eid;
-	struct ast_event *event;
 	unsigned int cachable = AST_DEVSTATE_CACHABLE;
 
 	item = iks_find(iks_find(iks_find(pak->x, "event"), "items"), "item");
@@ -3374,12 +3372,6 @@ static int aji_handle_pubsub_event(void *data, ikspak *pak)
 		return IKS_FILTER_EAT;
 	}
 
-	if (cachable == AST_DEVSTATE_CACHABLE) {
-		ast_event_queue_and_cache(event);
-	} else {
-		ast_event_queue(event);
-	}
-
 	return IKS_FILTER_EAT;
 }
 
diff --git a/res/res_parking.c b/res/res_parking.c
index c7156fbe05c27a21bc035a086a311a49c8294a8b..3cd10a1dd2ad0980d9d8d986a3e397d32d1775d3 100644
--- a/res/res_parking.c
+++ b/res/res_parking.c
@@ -184,7 +184,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "parking/res_parking.h"
 #include "asterisk/config.h"
 #include "asterisk/config_options.h"
-#include "asterisk/event.h"
 #include "asterisk/utils.h"
 #include "asterisk/module.h"
 #include "asterisk/cli.h"
diff --git a/res/res_security_log.c b/res/res_security_log.c
index 1a4f379a109e7de0ed389f084821cd19a50e7562..9e87acf12357a918b354a50db392c9a4c8196c8f 100644
--- a/res/res_security_log.c
+++ b/res/res_security_log.c
@@ -105,8 +105,7 @@ static void security_event_stasis_cb(struct ast_json *json)
 		return;
 	}
 
-	ast_str_set(&str, 0, "%s=\"%s\"",
-			ast_event_get_ie_type_name(AST_EVENT_IE_SECURITY_EVENT),
+	ast_str_set(&str, 0, "SecurityEvent=\"%s\"",
 			ast_security_event_get_name(event_type));
 
 	append_json(&str, json,
diff --git a/res/res_xmpp.c b/res/res_xmpp.c
index 3be8aa458fdb1ef8075373b796b69316b691b3d4..1a3ccd3a6b9ffac64c35de9d1af1a00c5df31e3b 100644
--- a/res/res_xmpp.c
+++ b/res/res_xmpp.c
@@ -59,7 +59,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/app.h"
 #include "asterisk/message.h"
 #include "asterisk/manager.h"
-#include "asterisk/event.h"
 #include "asterisk/cli.h"
 #include "asterisk/config_options.h"
 
@@ -1455,7 +1454,6 @@ static int xmpp_pubsub_handle_event(void *data, ikspak *pak)
 	int oldmsgs, newmsgs;
 	iks *item, *item_content;
 	struct ast_eid pubsub_eid;
-	struct ast_event *event;
 	unsigned int cachable = AST_DEVSTATE_CACHABLE;
 	item = iks_find(iks_find(iks_find(pak->x, "event"), "items"), "item");
 	if (!item) {
@@ -1493,12 +1491,6 @@ static int xmpp_pubsub_handle_event(void *data, ikspak *pak)
 		return IKS_FILTER_EAT;
 	}
 
-	if (cachable == AST_DEVSTATE_CACHABLE) {
-		ast_event_queue_and_cache(event);
-	} else {
-		ast_event_queue(event);
-	}
-
 	return IKS_FILTER_EAT;
 }
 
diff --git a/tests/test_cel.c b/tests/test_cel.c
index 2b36937685eeb00a7dcd10d628a7866840f40d4a..2bf4f29e5b8b029fbae0e1c642ca4a46b611b068 100644
--- a/tests/test_cel.c
+++ b/tests/test_cel.c
@@ -1730,12 +1730,6 @@ static int match_ie_val(
 	case AST_EVENT_IE_PLTYPE_STR:
 	{
 		const char *str;
-		uint32_t hash;
-
-		hash = ast_event_get_ie_str_hash(event2, type);
-		if (hash != ast_event_get_ie_str_hash(event1, type)) {
-			return 0;
-		}
 
 		str = ast_event_get_ie_str(event2, type);
 		if (str) {
@@ -1743,11 +1737,6 @@ static int match_ie_val(
 			e1str = ast_event_get_ie_str(event1, type);
 			e2str = str;
 
-			if (type == AST_EVENT_IE_DEVICE) {
-				e1str = ast_tech_to_upper(ast_strdupa(e1str));
-				e2str = ast_tech_to_upper(ast_strdupa(e2str));
-			}
-
 			if (!strcmp(e1str, e2str)) {
 				return 1;
 			}
@@ -1773,10 +1762,8 @@ static int events_are_equal(struct ast_test *test, struct ast_event *received, s
 
 	for (res = ast_event_iterator_init(&iterator, received); !res; res = ast_event_iterator_next(&iterator)) {
 		/* XXX ignore sec/usec for now */
-		/* ignore EID */
 		int ie_type = ast_event_iterator_get_ie_type(&iterator);
 		if (ie_type != AST_EVENT_IE_CEL_EVENT_TIME_USEC
-			&& ie_type != AST_EVENT_IE_EID
 			&& ie_type != AST_EVENT_IE_CEL_EVENT_TIME
 			&& !match_ie_val(received, expected, ie_type)) {
 			ast_test_status_update(test, "Failed matching on field %s\n", ast_event_get_ie_type_name(ie_type));
@@ -1796,7 +1783,7 @@ static int dump_event(struct ast_test *test, struct ast_event *event)
 		return 0;
 	}
 
-	ast_test_status_update(test, "Event: %s %s\n", ast_event_get_type_name(event),
+	ast_test_status_update(test, "Event: %s\n",
 		ast_cel_get_type_name(ast_event_get_ie_uint(event, AST_EVENT_IE_CEL_EVENT_TYPE)));
 
 	do {
@@ -1810,9 +1797,6 @@ static int dump_event(struct ast_test *test, struct ast_event *event)
 
 		switch (ie_pltype) {
 		case AST_EVENT_IE_PLTYPE_UNKNOWN:
-		case AST_EVENT_IE_PLTYPE_EXISTS:
-			ast_test_status_update(test, "%s\n", ie_type_name);
-			break;
 		case AST_EVENT_IE_PLTYPE_STR:
 			ast_test_status_update(test, "%.30s: %s\n", ie_type_name,
 					ast_event_iterator_get_ie_str(&i));
@@ -1821,9 +1805,6 @@ static int dump_event(struct ast_test *test, struct ast_event *event)
 			ast_test_status_update(test, "%.30s: %u\n", ie_type_name,
 					ast_event_iterator_get_ie_uint(&i));
 			break;
-		case AST_EVENT_IE_PLTYPE_BITFLAGS:
-			ast_test_status_update(test, "%.30s: %u\n", ie_type_name,
-					ast_event_iterator_get_ie_bitflags(&i));
 		default:
 			break;
 		}
diff --git a/tests/test_event.c b/tests/test_event.c
index 9a4c2419fa6eee982ab88040187c8e615d5dcd01..10282b5cce50c4f2450f5850e9c8000b9a749685 100644
--- a/tests/test_event.c
+++ b/tests/test_event.c
@@ -25,21 +25,14 @@
  * \ingroup tests
  *
  * \todo API Calls not yet touched by a test: XXX TODO
- *   - ast_event_queue_and_cache()
- *   - ast_event_get_cached()
  *   - ast_event_report_subs()
- *   - ast_event_dump_cache()
  *   - ast_event_get_ie_type_name()
  *   - ast_event_get_ie_pltype()
- *   - ast_event_str_to_event_type()
- *   - ast_event_str_to_ie_type()
  *   - ast_event_iterator_init()
  *   - ast_event_iterator_next()
  *   - ast_event_iterator_get_ie_type()
  *   - ast_event_iterator_get_ie_uint()
- *   - ast_event_iterator_get_ie_bitflags()
  *   - ast_event_iterator_get_ie_str()
- *   - ast_event_iterator_get_ie_raw()
  */
 
 /*** MODULEINFO
@@ -58,7 +51,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
 static int check_event(struct ast_event *event, struct ast_test *test,
 		enum ast_event_type expected_type, const char *type_name,
-		const char *str, uint32_t uint, uint32_t bitflags)
+		const char *str, uint32_t uint)
 {
 	enum ast_event_type type;
 	const void *foo;
@@ -71,46 +64,27 @@ static int check_event(struct ast_event *event, struct ast_test *test,
 		return -1;
 	}
 
-	/* Check #2: Check string representation of event type */
-	if (strcmp(type_name, ast_event_get_type_name(event))) {
-		ast_test_status_update(test, "Didn't get expected type name: '%s' != '%s'\n",
-				type_name, ast_event_get_type_name(event));
-		return -1;
-	}
-
-	/* Check #3: Check for automatically included EID */
-	if (memcmp(&ast_eid_default, ast_event_get_ie_raw(event, AST_EVENT_IE_EID), sizeof(ast_eid_default))) {
-		ast_test_status_update(test, "Failed to get EID\n");
-		return -1;
-	}
-
 	/* Check #4: Check for the string IE */
-	if (strcmp(str, ast_event_get_ie_str(event, AST_EVENT_IE_MAILBOX))) {
+	if (strcmp(str, ast_event_get_ie_str(event, AST_EVENT_IE_CEL_USEREVENT_NAME))) {
 		ast_test_status_update(test, "Failed to get string IE.\n");
 		return -1;
 	}
 
 	/* Check #5: Check for the uint IE */
-	if (uint != ast_event_get_ie_uint(event, AST_EVENT_IE_NEWMSGS)) {
+	if (uint != ast_event_get_ie_uint(event, AST_EVENT_IE_CEL_AMAFLAGS)) {
 		ast_test_status_update(test, "Failed to get uint IE.\n");
 		return -1;
 	}
 
-	/* Check #6: Check for the bitflags IE */
-	if (bitflags != ast_event_get_ie_bitflags(event, AST_EVENT_IE_OLDMSGS)) {
-		ast_test_status_update(test, "Failed to get bitflags IE.\n");
-		return -1;
-	}
-
-	/* Check #7: Check if a check for a str IE that isn't there works */
-	if ((foo = ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE))) {
-		ast_test_status_update(test, "DEVICE IE check returned non-NULL %p\n", foo);
+	/* Check #6: Check if a check for a str IE that isn't there works */
+	if ((foo = ast_event_get_ie_str(event, AST_EVENT_IE_CEL_CIDNAME))) {
+		ast_test_status_update(test, "CEL_CIDNAME IE check returned non-NULL %p\n", foo);
 		return -1;
 	}
 
-	/* Check #8: Check if a check for a uint IE that isn't there returns 0 */
-	if (ast_event_get_ie_uint(event, AST_EVENT_IE_STATE)) {
-		ast_test_status_update(test, "OLDMSGS IE should be 0\n");
+	/* Check #7: Check if a check for a uint IE that isn't there returns 0 */
+	if (ast_event_get_ie_uint(event, AST_EVENT_IE_CEL_EVENT_TIME_USEC)) {
+		ast_test_status_update(test, "UNIQUEID IE should be 0\n");
 		return -1;
 	}
 
@@ -130,7 +104,6 @@ AST_TEST_DEFINE(event_new_test)
 	static const enum ast_event_type type = AST_EVENT_CUSTOM;
 	static const char str[] = "SIP/alligatormittens";
 	static const uint32_t uint = 0xb00bface;
-	static const uint32_t bitflags = 0x12488421;
 
 	switch (cmd) {
 	case TEST_INIT:
@@ -160,34 +133,27 @@ AST_TEST_DEFINE(event_new_test)
 		goto return_cleanup;
 	}
 
-	if (ast_event_append_ie_str(&event, AST_EVENT_IE_MAILBOX, str)) {
+	if (ast_event_append_ie_str(&event, AST_EVENT_IE_CEL_USEREVENT_NAME, str)) {
 		ast_test_status_update(test, "Failed to append str IE\n");
 		res = AST_TEST_FAIL;
 		goto return_cleanup;
 	}
 
-	if (ast_event_append_ie_uint(&event, AST_EVENT_IE_NEWMSGS, uint)) {
+	if (ast_event_append_ie_uint(&event, AST_EVENT_IE_CEL_AMAFLAGS, uint)) {
 		ast_test_status_update(test, "Failed to append uint IE\n");
 		res = AST_TEST_FAIL;
 		goto return_cleanup;
 	}
 
-	if (ast_event_append_ie_bitflags(&event, AST_EVENT_IE_OLDMSGS, bitflags)) {
-		ast_test_status_update(test, "Failed to append bitflags IE\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
-	if (check_event(event, test, type, "Custom", str, uint, bitflags)) {
+	if (check_event(event, test, type, "Custom", str, uint)) {
 		ast_test_status_update(test, "Dynamically generated event broken\n");
 		res = AST_TEST_FAIL;
 		goto return_cleanup;
 	}
 
 	event2 = ast_event_new(type,
-			AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, str,
-			AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, uint,
-			AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_BITFLAGS, bitflags,
+			AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_STR, str,
+			AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, uint,
 			AST_EVENT_IE_END);
 
 	if (!event2) {
@@ -196,7 +162,7 @@ AST_TEST_DEFINE(event_new_test)
 		goto return_cleanup;
 	}
 
-	if (check_event(event2, test, type, "Custom", str, uint, bitflags)) {
+	if (check_event(event2, test, type, "Custom", str, uint)) {
 		ast_test_status_update(test, "Statically generated event broken\n");
 		res = AST_TEST_FAIL;
 		goto return_cleanup;
@@ -240,7 +206,6 @@ enum test_subs_class_type {
 	TEST_SUBS_CUSTOM_STR,
 	TEST_SUBS_CUSTOM_RAW,
 	TEST_SUBS_CUSTOM_UINT,
-	TEST_SUBS_CUSTOM_BITFLAGS,
 	TEST_SUBS_CUSTOM_EXISTS,
 	TEST_SUBS_CUSTOM_DYNAMIC,
 	TEST_SUBS_CUSTOM_ANY,
@@ -268,8 +233,6 @@ static const char *test_subs_class_type_str(enum test_subs_class_type val)
 		return "TEST_SUBS_CUSTOM_RAW";
 	case TEST_SUBS_CUSTOM_UINT:
 		return "TEST_SUBS_CUSTOM_UINT";
-	case TEST_SUBS_CUSTOM_BITFLAGS:
-		return "TEST_SUBS_CUSTOM_BITFLAGS";
 	case TEST_SUBS_CUSTOM_EXISTS:
 		return "TEST_SUBS_CUSTOM_EXISTS";
 	case TEST_SUBS_CUSTOM_DYNAMIC:
@@ -312,9 +275,6 @@ AST_TEST_DEFINE(event_sub_test)
 		[TEST_SUBS_CUSTOM_UINT] = {
 			.expected_count = 1,
 		},
-		[TEST_SUBS_CUSTOM_BITFLAGS] = {
-			.expected_count = 4,
-		},
 		[TEST_SUBS_CUSTOM_EXISTS] = {
 			.expected_count = 2,
 		},
@@ -322,7 +282,7 @@ AST_TEST_DEFINE(event_sub_test)
 			.expected_count = 1,
 		},
 		[TEST_SUBS_CUSTOM_ANY] = {
-			.expected_count = 6,
+			.expected_count = 5,
 		},
 	};
 
@@ -351,12 +311,12 @@ AST_TEST_DEFINE(event_sub_test)
 	/*
 	 * Subscription TEST_SUBS_CUSTOM_STR:
 	 *  - allocate normally
-	 *  - subscribe to CUSTOM events with a DEVICE STR IE check
+	 *  - subscribe to CUSTOM events with a CEL_CIDNAME STR IE check
 	 */
 	ast_test_status_update(test, "Adding TEST_SUBS_CUSTOM_STR subscription\n");
 	test_subs[TEST_SUBS_CUSTOM_STR].sub = ast_event_subscribe(AST_EVENT_CUSTOM, event_sub_cb,
 		test_subs_class_type_str(TEST_SUBS_CUSTOM_STR), &test_subs[TEST_SUBS_CUSTOM_STR].data,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
 		AST_EVENT_IE_END);
 	if (!test_subs[TEST_SUBS_CUSTOM_STR].sub) {
 		ast_test_status_update(test, "Failed to create TEST_SUBS_CUSTOM_STR subscription\n");
@@ -364,14 +324,6 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_STR].sub),
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_STR))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_STR subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	ast_test_status_update(test, "Check that a CUSTOM subscriber exists\n");
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
 		AST_EVENT_IE_END);
@@ -384,12 +336,12 @@ AST_TEST_DEFINE(event_sub_test)
 	/*
 	 * Subscription TEST_SUBS_ALL_STR:
 	 *  - allocate normally
-	 *  - subscribe to ALL events with a DEVICE STR IE check
+	 *  - subscribe to ALL events with a CEL_CIDNAME STR IE check
 	 */
 	ast_test_status_update(test, "Adding TEST_SUBS_ALL_STR subscription\n");
 	test_subs[TEST_SUBS_ALL_STR].sub = ast_event_subscribe(AST_EVENT_ALL, event_sub_cb,
 		test_subs_class_type_str(TEST_SUBS_ALL_STR), &test_subs[TEST_SUBS_ALL_STR].data,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
 		AST_EVENT_IE_END);
 	if (!test_subs[TEST_SUBS_ALL_STR].sub) {
 		ast_test_status_update(test, "Failed to create TEST_SUBS_ALL_STR subscription\n");
@@ -397,23 +349,15 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_ALL_STR].sub),
-		test_subs_class_type_str(TEST_SUBS_ALL_STR))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_ALL_STR subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	/*
 	 * Subscription TEST_SUBS_CUSTOM_RAW:
 	 *  - allocate normally
-	 *  - subscribe to CUSTOM events with a MAILBOX RAW IE check
+	 *  - subscribe to CUSTOM events with a CEL_USEREVENT_NAME RAW IE check
 	 */
 	ast_test_status_update(test, "Adding TEST_SUBS_CUSTOM_RAW subscription\n");
 	test_subs[TEST_SUBS_CUSTOM_RAW].sub = ast_event_subscribe(AST_EVENT_CUSTOM, event_sub_cb,
 		test_subs_class_type_str(TEST_SUBS_CUSTOM_RAW), &test_subs[TEST_SUBS_CUSTOM_RAW].data,
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
 		AST_EVENT_IE_END);
 	if (!test_subs[TEST_SUBS_CUSTOM_RAW].sub) {
 		ast_test_status_update(test, "Failed to create TEST_SUBS_CUSTOM_RAW subscription\n");
@@ -421,23 +365,15 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_RAW].sub),
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_RAW))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_RAW subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	/*
 	 * Subscription TEST_SUBS_CUSTOM_UINT:
 	 *  - allocate normally
-	 *  - subscribe to CUSTOM events with a NEWMSGS UINT IE check
+	 *  - subscribe to CUSTOM events with a CEL_AMAFLAGS UINT IE check
 	 */
 	ast_test_status_update(test, "Adding TEST_SUBS_CUSTOM_UINT subscription\n");
 	test_subs[TEST_SUBS_CUSTOM_UINT].sub = ast_event_subscribe(AST_EVENT_CUSTOM, event_sub_cb,
 		test_subs_class_type_str(TEST_SUBS_CUSTOM_UINT), &test_subs[TEST_SUBS_CUSTOM_UINT].data,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 5,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 5,
 		AST_EVENT_IE_END);
 	if (!test_subs[TEST_SUBS_CUSTOM_UINT].sub) {
 		ast_test_status_update(test, "Failed to create TEST_SUBS_CUSTOM_UINT subscription\n");
@@ -445,48 +381,15 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_UINT].sub),
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_UINT))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_UINT subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
-	/*
-	 * Subscription TEST_SUBS_CUSTOM_BITFLAGS:
-	 *  - allocate normally
-	 *  - subscribe to CUSTOM events with a NEWMSGS BITFLAGS IE check
-	 */
-	ast_test_status_update(test, "Adding TEST_SUBS_CUSTOM_BITFLAGS subscription\n");
-	test_subs[TEST_SUBS_CUSTOM_BITFLAGS].sub = ast_event_subscribe(AST_EVENT_CUSTOM, event_sub_cb,
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_BITFLAGS), &test_subs[TEST_SUBS_CUSTOM_BITFLAGS].data,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_BITFLAGS, 0x06,
-		AST_EVENT_IE_END);
-	if (!test_subs[TEST_SUBS_CUSTOM_BITFLAGS].sub) {
-		ast_test_status_update(test, "Failed to create TEST_SUBS_CUSTOM_BITFLAGS subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_BITFLAGS].sub),
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_BITFLAGS))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_BITFLAGS subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	/*
 	 * Subscription TEST_SUBS_CUSTOM_EXISTS:
 	 *  - allocate normally
-	 *  - subscribe to CUSTOM events with a NEWMSGS UINT and OLDMSGS EXISTS IE check
+	 *  - subscribe to CUSTOM events with a CEL_AMAFLAGS UINT and UNIQUEID EXISTS IE check
 	 */
 	ast_test_status_update(test, "Adding TEST_SUBS_CUSTOM_EXISTS subscription\n");
 	test_subs[TEST_SUBS_CUSTOM_EXISTS].sub = ast_event_subscribe(AST_EVENT_CUSTOM, event_sub_cb,
 		test_subs_class_type_str(TEST_SUBS_CUSTOM_EXISTS), &test_subs[TEST_SUBS_CUSTOM_EXISTS].data,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
-		AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_EXISTS,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 4,
 		AST_EVENT_IE_END);
 	if (!test_subs[TEST_SUBS_CUSTOM_EXISTS].sub) {
 		ast_test_status_update(test, "Failed to create TEST_SUBS_CUSTOM_EXISTS subscription\n");
@@ -494,14 +397,6 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_EXISTS].sub),
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_EXISTS))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_EXISTS subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	/* For the sake of exercising destruction before activation */
 	test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = ast_event_subscribe_new(AST_EVENT_CUSTOM,
 		event_sub_cb, &test_subs[TEST_SUBS_CUSTOM_DYNAMIC].data);
@@ -527,17 +422,7 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub),
-		"")) {
-		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
-		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_DYNAMIC subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
-	if (ast_event_sub_append_ie_uint(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_NEWMSGS, 4)) {
+	if (ast_event_sub_append_ie_uint(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_CEL_AMAFLAGS, 4)) {
 		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
 		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
 		ast_test_status_update(test, "Failed to append UINT IE to TEST_SUBS_CUSTOM_DYNAMIC subscription\n");
@@ -545,15 +430,7 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (ast_event_sub_append_ie_bitflags(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_OLDMSGS, 1)) {
-		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
-		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
-		ast_test_status_update(test, "Failed to append BITFLAGS IE to TEST_SUBS_CUSTOM_DYNAMIC subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
-	if (ast_event_sub_append_ie_str(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_DEVICE, "FOO/bar")) {
+	if (ast_event_sub_append_ie_str(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_CEL_CIDNAME, "FOO/bar")) {
 		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
 		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
 		ast_test_status_update(test, "Failed to append STR IE to TEST_SUBS_CUSTOM_DYNAMIC subscription\n");
@@ -561,7 +438,7 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (ast_event_sub_append_ie_raw(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_MAILBOX, "800 km",
+	if (ast_event_sub_append_ie_raw(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_CEL_USEREVENT_NAME, "800 km",
 			strlen("800 km"))) {
 		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
 		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
@@ -570,14 +447,6 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (ast_event_sub_append_ie_exists(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub, AST_EVENT_IE_STATE)) {
-		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
-		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
-		ast_test_status_update(test, "Failed to append EXISTS IE to TEST_SUBS_CUSTOM_DYNAMIC subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	if (ast_event_sub_activate(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub)) {
 		ast_event_sub_destroy(test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub);
 		test_subs[TEST_SUBS_CUSTOM_DYNAMIC].sub = NULL;
@@ -593,34 +462,15 @@ AST_TEST_DEFINE(event_sub_test)
 
 	/* Check STR matching. */
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_EXISTS) {
 		ast_test_status_update(test, "Str FOO/bar subscription did not exist\n");
 		res = AST_TEST_FAIL;
 	}
 
-	/* Make sure that the tech portion of the device string is case-insensitive */
-	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "foo/bar",
-		AST_EVENT_IE_END);
-	if (sub_res != AST_EVENT_SUB_EXISTS) {
-		ast_test_status_update(test, "Str FOO/bar subscription lacks proper case-sensitivity for device strings\n");
-		res = AST_TEST_FAIL;
-	}
-
-	/* Make sure that the non-tech portion of the device string is case-sensitive
-	 * and fails to match appropriately */
-	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "FOO/BAR",
-		AST_EVENT_IE_END);
-	if (sub_res == AST_EVENT_SUB_EXISTS) {
-		ast_test_status_update(test, "Str FOO/bar subscription lacks proper case-sensitivity for device strings\n");
-		res = AST_TEST_FAIL;
-	}
-
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "Money",
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "Money",
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_NONE) {
 		ast_test_status_update(test, "Str Money subscription should not exist! (%d)\n",
@@ -630,7 +480,7 @@ AST_TEST_DEFINE(event_sub_test)
 
 	/* Check RAW matching. */
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_EXISTS) {
 		ast_test_status_update(test, "Raw FOO/bar subscription did not exist\n");
@@ -638,7 +488,7 @@ AST_TEST_DEFINE(event_sub_test)
 	}
 
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar") - 1,
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar") - 1,
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_NONE) {
 		ast_test_status_update(test, "Raw FOO/bar-1 subscription should not exist! (%d)\n",
@@ -647,7 +497,7 @@ AST_TEST_DEFINE(event_sub_test)
 	}
 
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "Monkeys", sizeof("Monkeys"),
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "Monkeys", sizeof("Monkeys"),
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_NONE) {
 		ast_test_status_update(test, "Raw Monkeys subscription should not exist! (%d)\n",
@@ -657,7 +507,7 @@ AST_TEST_DEFINE(event_sub_test)
 
 	/* Check UINT matching. */
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 5,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 5,
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_EXISTS) {
 		ast_test_status_update(test, "UINT=5 subscription did not exist\n");
@@ -665,7 +515,7 @@ AST_TEST_DEFINE(event_sub_test)
 	}
 
 	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 1,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 1,
 		AST_EVENT_IE_END);
 	if (sub_res != AST_EVENT_SUB_NONE) {
 		ast_test_status_update(test, "UINT=1 subscription should not exist! (%d)\n",
@@ -673,43 +523,6 @@ AST_TEST_DEFINE(event_sub_test)
 		res = AST_TEST_FAIL;
 	}
 
-	/* Check BITFLAGS matching. */
-	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_BITFLAGS, 2,
-		AST_EVENT_IE_END);
-	if (sub_res != AST_EVENT_SUB_EXISTS) {
-		ast_test_status_update(test, "BITFLAGS=2 subscription did not exist\n");
-		res = AST_TEST_FAIL;
-	}
-
-	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_BITFLAGS, 8,
-		AST_EVENT_IE_END);
-	if (sub_res != AST_EVENT_SUB_NONE) {
-		ast_test_status_update(test, "BITFLAGS=8 subscription should not exist! (%d)\n",
-			sub_res);
-		res = AST_TEST_FAIL;
-	}
-
-	/* Check EXISTS matching. */
-	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
-		AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_UINT, 100,
-		AST_EVENT_IE_END);
-	if (sub_res != AST_EVENT_SUB_EXISTS) {
-		ast_test_status_update(test, "EXISTS subscription did not exist\n");
-		res = AST_TEST_FAIL;
-	}
-
-	sub_res = ast_event_check_subscriber(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
-		AST_EVENT_IE_END);
-	if (sub_res != AST_EVENT_SUB_NONE) {
-		ast_test_status_update(test, "EXISTS subscription should not exist! (%d)\n",
-			sub_res);
-		res = AST_TEST_FAIL;
-	}
-
 	ast_test_status_update(test, "Special event posting test\n");
 
 	/*
@@ -719,8 +532,8 @@ AST_TEST_DEFINE(event_sub_test)
 	 * TEST_SUBS_CUSTOM_RAW
 	 */
 	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "Mula",
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "Mula",
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
 		AST_EVENT_IE_END);
 	if (!event) {
 		ast_test_status_update(test, "Failed to create event\n");
@@ -753,14 +566,6 @@ AST_TEST_DEFINE(event_sub_test)
 		goto return_cleanup;
 	}
 
-	if (strcmp(ast_event_subscriber_get_description(test_subs[TEST_SUBS_CUSTOM_ANY].sub),
-		test_subs_class_type_str(TEST_SUBS_CUSTOM_ANY))) {
-		ast_test_status_update(test,
-			"Unexpected subscription description on TEST_SUBS_CUSTOM_ANY subscription\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
 	/*
 	 * Fire off some events and track what was received in the callback
 	 */
@@ -775,8 +580,8 @@ AST_TEST_DEFINE(event_sub_test)
 	 * TEST_SUBS_CUSTOM_ANY
 	 */
 	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar") - 1,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar") - 1,
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
 		AST_EVENT_IE_END);
 	if (!event) {
 		ast_test_status_update(test, "Failed to create event\n");
@@ -799,8 +604,8 @@ AST_TEST_DEFINE(event_sub_test)
 	 * TEST_SUBS_CUSTOM_ANY
 	 */
 	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "Misery",
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "Misery",
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "FOO/bar", sizeof("FOO/bar"),
 		AST_EVENT_IE_END);
 	if (!event) {
 		ast_test_status_update(test, "Failed to create event\n");
@@ -820,34 +625,10 @@ AST_TEST_DEFINE(event_sub_test)
 	 *
 	 * Matching subscriptions:
 	 * TEST_SUBS_CUSTOM_UINT
-	 * TEST_SUBS_CUSTOM_BITFLAGS
-	 * TEST_SUBS_CUSTOM_ANY
-	 */
-	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 5,
-		AST_EVENT_IE_END);
-	if (!event) {
-		ast_test_status_update(test, "Failed to create event\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-	if (ast_event_queue(event)) {
-		ast_event_destroy(event);
-		event = NULL;
-		ast_test_status_update(test, "Failed to queue event\n");
-		res = AST_TEST_FAIL;
-		goto return_cleanup;
-	}
-
-	/*
-	 * Event to check BITFLAGS matching.
-	 *
-	 * Matching subscriptions:
-	 * TEST_SUBS_CUSTOM_BITFLAGS
 	 * TEST_SUBS_CUSTOM_ANY
 	 */
 	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 5,
 		AST_EVENT_IE_END);
 	if (!event) {
 		ast_test_status_update(test, "Failed to create event\n");
@@ -867,12 +648,11 @@ AST_TEST_DEFINE(event_sub_test)
 	 *
 	 * Matching subscriptions:
 	 * TEST_SUBS_CUSTOM_EXISTS
-	 * TEST_SUBS_CUSTOM_BITFLAGS
 	 * TEST_SUBS_CUSTOM_ANY
 	 */
 	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
-		AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 4,
+		AST_EVENT_IE_UNIQUEID, AST_EVENT_IE_PLTYPE_UINT, 4,
 		AST_EVENT_IE_END);
 	if (!event) {
 		ast_test_status_update(test, "Failed to create event\n");
@@ -892,18 +672,17 @@ AST_TEST_DEFINE(event_sub_test)
 	 *
 	 * Matching subscriptions:
 	 * TEST_SUBS_CUSTOM_DYNAMIC
-	 * TEST_SUBS_CUSTOM_BITFLAGS
 	 * TEST_SUBS_CUSTOM_EXISTS
 	 * TEST_SUBS_ALL_STR
 	 * TEST_SUBS_CUSTOM_STR
 	 * TEST_SUBS_CUSTOM_ANY
 	 */
 	event = ast_event_new(AST_EVENT_CUSTOM,
-		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, 4,
-		AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_UINT, 5,
-		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_RAW, "800 km", strlen("800 km"),
-		AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
-		AST_EVENT_IE_STATE, AST_EVENT_IE_PLTYPE_UINT, 5,
+		AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_UINT, 4,
+		AST_EVENT_IE_UNIQUEID, AST_EVENT_IE_PLTYPE_UINT, 5,
+		AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_RAW, "800 km", strlen("800 km"),
+		AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "FOO/bar",
+		AST_EVENT_IE_CEL_EVENT_TIME_USEC, AST_EVENT_IE_PLTYPE_UINT, 5,
 		AST_EVENT_IE_END);
 	if (!event) {
 		ast_test_status_update(test, "Failed to create event\n");