diff --git a/CREDITS b/CREDITS
index cef7cfc1af096fc1151b24293f3e86eb574d315c..b971259ef0124875990661069b8d527cc6aaeb4c 100755
--- a/CREDITS
+++ b/CREDITS
@@ -6,6 +6,13 @@ and TSU 120e to the project. (http://www.adtran.com)
 * Thanks to QuickNet Technologies for their donation of an Internet
 PhoneJack card to the project.  (http://www.quicknet.net)
 
+=== DEVELOPMENT SUPPORT ===
+I'd like to thank the following companies for helping fund development of
+Asterisk:
+
+* Celera Networks - US Digital
+* Adtran, Inc.
+
 === OTHER SOURCE CODE IN ASTERISK ===
 
 I did not implement the codecs in asterisk.  Here is the copyright on the
diff --git a/README b/README
index 0656a898500f4bee1bd118867d3386b442f7d305..704e31d6755fdc5591cb4830c116f0577c487401 100755
--- a/README
+++ b/README
@@ -1,7 +1,11 @@
 The Asterisk Open Source PBX
 by Mark Spencer <markster@linux-support.net>
-Copyright (C) 1999, Mark Spencer
+Copyright (C) 2001, Linux Support Services, Inc.
 ================================================================
+* SECURITY
+  It is imperative that you read and fully understand the contents of
+  the SECURITY file before you attempt to configure an Asterisk server.
+
 * WHAT IS ASTERISK
   Asterisk is an Open Source PBX and telephony toolkit.  It is, in a
 sense, middleware between Internet and telephony channels on the bottom,
@@ -10,7 +14,27 @@ on the project itself, please visit the Asterisk home page at:
 
            http://www.asteriskpbx.com
 
-
+* LICENSING
+  Asterisk is distributed under GNU General Public License.  The GPL also
+must apply to all loadable modules as well, except as defined below.
+
+  Linux Support Services, Inc. retains copyright to all of the core
+Asterisk system, and therefore can grant, at its sole discression, the
+ability for companies, individuals, or organizations to create proprietary
+or Open Source (but non-GPL'd) modules which may be dynamically linked at
+runtime with the portions of Asterisk which fall under our copyright
+umbrella, or are distributed under more flexible licenses than GPL.  At
+this time (5/21/2001) the only component of Asterisk which is covered
+under GPL and not under our Copyright is the Xing MP3 decoder.
+
+  If you wish to use our code in other GPL programs, don't worry -- there
+is no requirement that you provide the same exemption in your GPL'd
+products (although if you've written a module for Asterisk we would
+strongly encourage you to make the same excemption that we do).
+
+  If you have any questions, whatsoever, regarding our licensing policy,
+please contact us.
+  
 * REQUIRED COMPONENTS
 
 == Linux ==
diff --git a/SECURITY b/SECURITY
new file mode 100755
index 0000000000000000000000000000000000000000..fd9873958127e19a0763efa3b40952d627ecf98c
--- /dev/null
+++ b/SECURITY
@@ -0,0 +1,38 @@
+==== Security Notes with Asterisk ====
+
+PLEASE READ THE FOLLOWING IMPORTANT SECURITY RELATED INFORMATION.  
+IMPROPER CONFIGURATION OF ASTERISK COULD ALLOW UNAUTHORIZED USE OF YOUR
+FACILITIES, POTENTIALLY INCURRING SUBSTANTIAL CHARGES.
+
+First and foremost remember this:
+
+USE THE EXTENSION CONTEXTS TO ISOLATE OUTGOING OR TOLL SERVICES FROM ANY
+INCOMING CONNECTIONS.
+
+You should consider that if any channel, incoming line, etc can enter an
+extension context that it has the capability of accessing any extension
+within that context. 
+
+Therefore, you should NOT allow access to outgoing or toll services in
+contexts that are accessible (especially without a password) from incoming
+channels, be they IAX channels, FX or other trunks, or even untrusted
+stations within you network.  In particular, never ever put outgoing toll
+services in the "default" context.  To make things easier, you can include
+the "default" context within other private contexts by using:
+
+	include => default
+
+in the appropriate section.  A well designed PBX might look like this:
+
+[longdistance]
+exten => _91NXXNXXXXXX,1,Dial,Tor/g2/BYEXTENSION
+include => local
+
+[local]
+exten => _9NXXNXXX,1,Dial,Tor/g2/BYEXTENSION
+include => default
+
+[default]
+exten => 6123,Dial,Tor/1
+
+
diff --git a/apps/app_image.c b/apps/app_image.c
new file mode 100755
index 0000000000000000000000000000000000000000..cc677ff5c352fbe49de09049b75c865f10831551
--- /dev/null
+++ b/apps/app_image.c
@@ -0,0 +1,89 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * App to transmit an image
+ * 
+ * Copyright (C) 1999, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+ 
+#include <asterisk/file.h>
+#include <asterisk/logger.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/module.h>
+#include <asterisk/translate.h>
+#include <asterisk/image.h>
+#include <string.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+static char *tdesc = "Image Transmission Application";
+
+static char *app = "SendImage";
+
+static char *synopsis = "Send an image file";
+
+static char *descrip = 
+"  SendImage(filename): Sends an image on a channel. If the channel\n"
+"does not support  image transport, and there exists  a  step  with\n"
+"priority n + 101, then  execution  will  continue  at  that  step.\n"
+"Otherwise,  execution  will continue at  the  next priority level.\n"
+"SendImage only  returns  0 if  the  image was sent correctly or if\n"
+"the channel does not support image transport, and -1 otherwise.\n";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int sendimage_exec(struct ast_channel *chan, void *data)
+{
+	int res = 0;
+	struct localuser *u;
+	if (!data || !strlen((char *)data)) {
+		ast_log(LOG_WARNING, "SendImage requires an argument (filename)\n");
+		return -1;
+	}
+	LOCAL_USER_ADD(u);
+	if (!ast_supports_images(chan)) {
+		/* Does not support transport */
+		if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid))
+			chan->priority += 100;
+		return 0;
+	}
+	res = ast_send_image(chan, data);
+	LOCAL_USER_REMOVE(u);
+	return res;
+}
+
+int unload_module(void)
+{
+	STANDARD_HANGUP_LOCALUSERS;
+	return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+	return ast_register_application(app, sendimage_exec, synopsis, descrip);
+}
+
+char *description(void)
+{
+	return tdesc;
+}
+
+int usecount(void)
+{
+	int res;
+	STANDARD_USECOUNT(res);
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}
diff --git a/apps/app_system.c b/apps/app_system.c
index bb10543e244f9799783f53ff3a4bd3ae723276c0..a4369125f2213b0794f1614973b6869192b23430 100755
--- a/apps/app_system.c
+++ b/apps/app_system.c
@@ -31,10 +31,11 @@ static char *app = "System";
 static char *synopsis = "Execute a system command";
 
 static char *descrip =
-"  System(command): Executes a command by using system().  Returns -1 on failure to execute\n"
-"  the specified command.  If the command itself executes but is in error, and if there exists\n"
-"  a priority n + 101, where 'n' is the priority of the current instance, then the channel will\n"
-"  will be setup to continue at that priority level.  Otherwise, System returns 0.\n";
+"  System(command): Executes a command  by  using  system(). Returns -1 on\n"
+"failure to execute the specified command. If  the command itself executes\n"
+"but is in error, and if there exists a priority n + 101, where 'n' is the\n"
+"priority of the current instance, then  the  channel  will  be  setup  to\n"
+"continue at that priority level.  Otherwise, System returns 0.\n";
 
 STANDARD_LOCAL_USER;
 
@@ -58,7 +59,7 @@ static int skel_exec(struct ast_channel *chan, void *data)
 		ast_log(LOG_WARNING, "Unable to execute '%s'\n", data);
 		res = -1;
 	} else {
-		if (res && ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101)) 
+		if (res && ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid)) 
 			chan->priority+=100;
 		res = 0;
 	}
diff --git a/apps/app_url.c b/apps/app_url.c
new file mode 100755
index 0000000000000000000000000000000000000000..542c490a789c7685543e3cab46ee30cf486073e8
--- /dev/null
+++ b/apps/app_url.c
@@ -0,0 +1,137 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * App to transmit a URL
+ * 
+ * Copyright (C) 1999, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+ 
+#include <asterisk/file.h>
+#include <asterisk/logger.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/module.h>
+#include <asterisk/translate.h>
+#include <asterisk/image.h>
+#include <string.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+static char *tdesc = "Send URL Applications";
+
+static char *app = "SendURL";
+
+static char *synopsis = "Send a URL";
+
+static char *descrip = 
+"  SendURL(URL[|option]): Requests client go to URL.  If the client\n"
+"does not support html transport, and  there  exists  a  step  with\n"
+"priority  n + 101,  then  execution  will  continue  at that step.\n"
+"Otherwise, execution will continue at  the  next  priority  level.\n"
+"SendURL only returns 0  if  the  URL  was  sent  correctly  or  if\n"
+"the channel  does  not  support HTML transport,  and -1 otherwise.\n"
+"If the option 'wait' is  specified,  execution  will  wait  for an\n"
+"acknowledgement that  the  URL  has  been loaded before continuing\n"
+"and will return -1 if the peer is unable to load the URL\n";
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+static int sendurl_exec(struct ast_channel *chan, void *data)
+{
+	int res = 0;
+	struct localuser *u;
+	char tmp[256];
+	char *options;
+	int option_wait=0;
+	struct ast_frame *f;
+	if (!data || !strlen((char *)data)) {
+		ast_log(LOG_WARNING, "SendURL requires an argument (URL)\n");
+		return -1;
+	}
+	strncpy(tmp, (char *)data, sizeof(tmp));
+	strtok(tmp, "|");
+	options = strtok(NULL, "|");
+	if (options && !strcasecmp(options, "wait"))
+		option_wait = 1;
+	LOCAL_USER_ADD(u);
+	if (!ast_channel_supports_html(chan)) {
+		/* Does not support transport */
+		if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid))
+			chan->priority += 100;
+		LOCAL_USER_REMOVE(u);
+		return 0;
+	}
+	res = ast_channel_sendurl(chan, tmp);
+	if (res > -1) {
+		if (option_wait) {
+			for(;;) {
+				/* Wait for an event */
+				res = ast_waitfor(chan, -1);
+				if (res < 0) 
+					break;
+				f = ast_read(chan);
+				if (!f) {
+					res = -1;
+					break;
+				}
+				if (f->frametype == AST_FRAME_HTML) {
+					switch(f->subclass) {
+					case AST_HTML_LDCOMPLETE:
+						res = 0;
+						ast_frfree(f);
+						goto out;
+						break;
+					case AST_HTML_NOSUPPORT:
+						/* Does not support transport */
+						if (ast_exists_extension(chan, chan->context, chan->exten, chan->priority + 101, chan->callerid))
+							chan->priority += 100;
+						res = 0;
+						goto out;
+						break;
+					default:
+						ast_log(LOG_WARNING, "Don't know what to do with HTML subclass %d\n", f->subclass);
+					};
+				}
+				ast_frfree(f);
+			}
+		}
+	}
+out:	
+	LOCAL_USER_REMOVE(u);
+	return res;
+}
+
+int unload_module(void)
+{
+	STANDARD_HANGUP_LOCALUSERS;
+	return ast_unregister_application(app);
+}
+
+int load_module(void)
+{
+	return ast_register_application(app, sendurl_exec, synopsis, descrip);
+}
+
+char *description(void)
+{
+	return tdesc;
+}
+
+int usecount(void)
+{
+	int res;
+	STANDARD_USECOUNT(res);
+	return res;
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}
diff --git a/callerid.c b/callerid.c
index f78714fbf45ab1b574c52292296b7446b81953d1..438d2b38b2dd5e0414810ae10c939ea79a3f92b9 100755
--- a/callerid.c
+++ b/callerid.c
@@ -62,7 +62,7 @@ struct callerid_state *callerid_new(void)
 {
 	struct callerid_state *cid;
 	cid = malloc(sizeof(struct callerid_state));
-	memset(cid, 0, sizeof(*cid));
+	memset(cid, 0, sizeof(struct callerid_state));
 	if (cid) {
 		cid->fskd.spb = 7;		/* 1200 baud */
 		cid->fskd.hdlc = 0;		/* Async */
@@ -146,6 +146,10 @@ int callerid_feed(struct callerid_state *cid, unsigned char *ubuf, int len)
 	while(mylen >= 80) {
 		olen = mylen;
 		res = fsk_serie(&cid->fskd, buf, &mylen, &b);
+		if (mylen < 0) {
+			ast_log(LOG_ERROR, "fsk_serie made mylen < 0 (%d)\n", mylen);
+			return -1;
+		}
 		buf += (olen - mylen);
 		if (res < 0) {
 			ast_log(LOG_NOTICE, "fsk_serie failed\n");
@@ -263,7 +267,8 @@ int callerid_feed(struct callerid_state *cid, unsigned char *ubuf, int len)
 	if (mylen) {
 		memcpy(cid->oldstuff, buf, mylen * 2);
 		cid->oldlen = mylen * 2;
-	}
+	} else
+		cid->oldlen = 0;
 	free(obuf);
 	return 0;
 }
@@ -444,7 +449,7 @@ void ast_shrink_phone_number(char *n)
 int ast_isphonenumber(char *n)
 {
 	int x;
-	if (!n)
+	if (!n || !strlen(n))
 		return 0;
 	for (x=0;n[x];x++)
 		if (!strchr("0123456789", n[x]))
@@ -483,7 +488,7 @@ int ast_callerid_parse(char *instr, char **name, char **location)
 	} else {
 		strncpy(tmp, instr, sizeof(tmp));
 		ast_shrink_phone_number(tmp);
-		if (!ast_isphonenumber(tmp)) {
+		if (ast_isphonenumber(tmp)) {
 			/* Assume it's just a location */
 			*name = NULL;
 			*location = instr;
diff --git a/channels/chan_oss.c b/channels/chan_oss.c
index 784067a9797422cc3eb974dc5f41e2345226920c..fab41ed14b0f0fbac5a4c856a7435aec1764a3e8 100755
--- a/channels/chan_oss.c
+++ b/channels/chan_oss.c
@@ -56,6 +56,7 @@ static struct timeval lasttime;
 
 static int usecnt;
 static int needanswer = 0;
+static int needringing = 0;
 static int needhangup = 0;
 static int silencesuppression = 0;
 static int silencethreshold = 1000;
@@ -438,6 +439,7 @@ static int oss_call(struct ast_channel *c, char *dest, int timeout)
 		needanswer = 1;
 	} else {
 		ast_verbose( " << Type 'answer' to answer, or use 'autoanswer' for future calls >> \n");
+		needringing = 1;
 		write(sndcmd[1], &res, sizeof(res));
 	}
 	return 0;
@@ -591,7 +593,15 @@ static struct ast_frame *oss_read(struct ast_channel *chan)
 	f.src = type;
 	f.mallocd = 0;
 	
+	if (needringing) {
+		f.frametype = AST_FRAME_CONTROL;
+		f.subclass = AST_CONTROL_RINGING;
+		needringing = 0;
+		return &f;
+	}
+	
 	if (needhangup) {
+		needhangup = 0;
 		return NULL;
 	}
 	if (strlen(text2send)) {
@@ -632,8 +642,10 @@ static struct ast_frame *oss_read(struct ast_channel *chan)
 	}
 	res = read(sounddev, buf + AST_FRIENDLY_OFFSET + readpos, FRAME_SIZE * 2 - readpos);
 	if (res < 0) {
-		ast_log(LOG_WARNING, "Error reading from sound device: %s\n", strerror(errno));
+		ast_log(LOG_WARNING, "Error reading from sound device (If you're running 'artsd' then kill it): %s\n", strerror(errno));
+#if 0
 		CRASH;
+#endif		
 		return NULL;
 	}
 	readpos += res;
@@ -641,6 +653,10 @@ static struct ast_frame *oss_read(struct ast_channel *chan)
 	if (readpos >= FRAME_SIZE * 2) {
 		/* A real frame */
 		readpos = 0;
+		if (chan->state != AST_STATE_UP) {
+			/* Don't transmit unless it's up */
+			return &f;
+		}
 		f.frametype = AST_FRAME_VOICE;
 		f.subclass = AST_FORMAT_SLINEAR;
 		f.timelen = FRAME_SIZE / 8;
@@ -887,7 +903,7 @@ static int console_dial(int fd, int argc, char *argv[])
 		if (tmp2 && strlen(tmp2))
 			myc = tmp2;
 	}
-	if (ast_exists_extension(NULL, myc, mye, 1)) {
+	if (ast_exists_extension(NULL, myc, mye, 1, NULL)) {
 		strncpy(oss.exten, mye, sizeof(oss.exten));
 		strncpy(oss.context, myc, sizeof(oss.context));
 		hookstate = 1;
diff --git a/channels/chan_phone.c b/channels/chan_phone.c
index d0ff80843ad0d21938832535236327ee61281cc0..27de1daac78f4c2f88a23aacbe17f7c2f7c37dd8 100755
--- a/channels/chan_phone.c
+++ b/channels/chan_phone.c
@@ -35,6 +35,7 @@
 #include "DialTone.h"
 
 #define PHONE_MAX_BUF 480
+#define DEFAULT_GAIN 0x100
 
 static char *desc = "Linux Telephony API Support";
 static char *type = "Phone";
@@ -52,7 +53,7 @@ static int echocancel = AEC_OFF;
 
 static int silencesupression = 0;
 
-static int prefformat = AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR;
+static int prefformat = AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW;
 
 static pthread_mutex_t usecnt_lock = PTHREAD_MUTEX_INITIALIZER;
 
@@ -90,13 +91,19 @@ static struct phone_pvt {
 	char buf[PHONE_MAX_BUF];					/* Static buffer for reading frames */
 	int obuflen;
 	int dialtone;
+	int txgain, rxgain;             /* gain control for playing, recording  */
+									/* 0x100 - 1.0, 0x200 - 2.0, 0x80 - 0.5 */
+	int cpt;						/* Call Progress Tone playing? */
 	int silencesupression;
 	char context[AST_MAX_EXTENSION];
 	char obuf[PHONE_MAX_BUF * 2];
 	char ext[AST_MAX_EXTENSION];
 	char language[MAX_LANGUAGE];
+	char callerid[AST_MAX_EXTENSION];
 } *iflist = NULL;
 
+static char callerid[AST_MAX_EXTENSION];
+
 static int phone_digit(struct ast_channel *ast, char digit)
 {
 	struct phone_pvt *p;
@@ -179,6 +186,7 @@ static int phone_hangup(struct ast_channel *ast)
 		if (option_debug)
 			ast_log(LOG_DEBUG, "Got hunghup, giving busy signal\n");
 		ioctl(p->fd, PHONE_BUSY);
+		p->cpt = 1;
 	}
 	p->lastformat = -1;
 	p->lastinput = -1;
@@ -226,6 +234,15 @@ static int phone_setup(struct ast_channel *ast)
 				return -1;
 			}
 		}
+	} else if (ast->pvt->rawreadformat == AST_FORMAT_ULAW) {
+		ioctl(p->fd, PHONE_REC_STOP);
+		if (p->lastinput != AST_FORMAT_ULAW) {
+			p->lastinput = AST_FORMAT_ULAW;
+			if (ioctl(p->fd, PHONE_REC_CODEC, ULAW)) {
+				ast_log(LOG_WARNING, "Failed to set codec to signed linear 16\n");
+				return -1;
+			}
+		}
 	} else {
 		ast_log(LOG_WARNING, "Can't do format %d\n", ast->pvt->rawreadformat);
 		return -1;
@@ -397,8 +414,16 @@ static int phone_write_buf(struct phone_pvt *p, char *buf, int len, int frlen)
 #endif
 		if (res != frlen) {
 			if (res < 1) {
+/*
+ * Card is in non-blocking mode now and it works well now, but there are
+ * lot of messages like this. So, this message is temporarily disabled.
+ */
+#if 0
 				ast_log(LOG_WARNING, "Write failed: %s\n", strerror(errno));
 				return -1;
+#else
+				return 0;
+#endif
 			} else {
 				ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frlen);
 			}
@@ -427,7 +452,8 @@ static int phone_write(struct ast_channel *ast, struct ast_frame *frame)
 		ast_frfree(frame);
 		return -1;
 	}
-	if (!(frame->subclass & (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR))) {
+	if (!(frame->subclass &
+		(AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW))) {
 		ast_log(LOG_WARNING, "Cannot handle frames in %d format\n", frame->subclass);
 		ast_frfree(frame);
 		return -1;
@@ -479,6 +505,25 @@ static int phone_write(struct ast_channel *ast, struct ast_frame *frame)
 			p->obuflen = 0;
 		}
 		maxfr = 480;
+	} else if (frame->subclass == AST_FORMAT_ULAW) {
+		if (p->lastformat != AST_FORMAT_ULAW) {
+			ioctl(p->fd, PHONE_PLAY_STOP);
+			ioctl(p->fd, PHONE_REC_STOP);
+			if (ioctl(p->fd, PHONE_PLAY_CODEC, ULAW)) {
+				ast_log(LOG_WARNING, "Unable to set uLaw mode\n");
+				return -1;
+			}
+			if (ioctl(p->fd, PHONE_REC_CODEC, ULAW)) {
+				ast_log(LOG_WARNING, "Unable to set uLaw mode\n");
+				return -1;
+			}
+			p->lastformat = AST_FORMAT_ULAW;
+			p->lastinput = AST_FORMAT_ULAW;
+			codecset = 1;
+			/* Reset output buffer */
+			p->obuflen = 0;
+		}
+		maxfr = 240;
 	}
 	if (codecset) {
 		ioctl(p->fd, PHONE_REC_DEPTH, 3);
@@ -517,8 +562,14 @@ static int phone_write(struct ast_channel *ast, struct ast_frame *frame)
 		if (res != expected) {
 			if (res < 0) 
 				ast_log(LOG_WARNING, "Write returned error (%s)\n", strerror(errno));
+/*
+ * Card is in non-blocking mode now and it works well now, but there are
+ * lot of messages like this. So, this message is temporarily disabled.
+ */
+#if 0
 			else
 				ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frame->datalen);
+#endif
 			return -1;
 		}
 		sofar += res;
@@ -553,6 +604,8 @@ static struct ast_channel *phone_new(struct phone_pvt *i, int state, char *conte
 			strncpy(tmp->exten, i->ext, sizeof(tmp->exten));
 		if (strlen(i->language))
 			strncpy(tmp->language, i->language, sizeof(tmp->language));
+		if (strlen(i->callerid))
+			tmp->callerid = strdup(i->callerid);
 		i->owner = tmp;
 		ast_pthread_mutex_lock(&usecnt_lock);
 		usecnt++;
@@ -561,6 +614,7 @@ static struct ast_channel *phone_new(struct phone_pvt *i, int state, char *conte
 		if (state != AST_STATE_DOWN) {
 			if (state == AST_STATE_RING) {
 				ioctl(tmp->fds[0], PHONE_RINGBACK);
+				i->cpt = 1;
 			}
 			if (ast_pbx_start(tmp)) {
 				ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
@@ -603,7 +657,7 @@ static void phone_check_exception(struct phone_pvt *i)
 			i->dialtone = 0;
 			if (strlen(i->ext) < AST_MAX_EXTENSION - 1)
 				strcat(i->ext, digit);
-			if (ast_exists_extension(NULL, i->context, i->ext, 1)) {
+			if (ast_exists_extension(NULL, i->context, i->ext, 1, i->callerid)) {
 				/* It's a valid extension in its context, get moving! */
 				phone_new(i, AST_STATE_RING, i->context);
 				/* No need to restart monitor, we are the monitor */
@@ -613,10 +667,10 @@ static void phone_check_exception(struct phone_pvt *i)
 					ast_pthread_mutex_unlock(&usecnt_lock);
 					ast_update_use_count();
 				}
-			} else if (!ast_canmatch_extension(NULL, i->context, i->ext, 1)) {
+			} else if (!ast_canmatch_extension(NULL, i->context, i->ext, 1, i->callerid)) {
 				/* There is nothing in the specified extension that can match anymore.
 				   Try the default */
-				if (ast_exists_extension(NULL, "default", i->ext, 1)) {
+				if (ast_exists_extension(NULL, "default", i->ext, 1, i->callerid)) {
 					/* Check the default, too... */
 					phone_new(i, AST_STATE_RING, "default");
 					if (i->owner) {
@@ -626,11 +680,12 @@ static void phone_check_exception(struct phone_pvt *i)
 						ast_update_use_count();
 					}
 					/* XXX This should probably be justified better XXX */
-				}  else if (!ast_canmatch_extension(NULL, "default", i->ext, 1)) {
+				}  else if (!ast_canmatch_extension(NULL, "default", i->ext, 1, i->callerid)) {
 					/* It's not a valid extension, give a busy signal */
 					if (option_debug)
 						ast_log(LOG_DEBUG, "%s can't match anything in %s or default\n", i->ext, i->context);
 					ioctl(i->fd, PHONE_BUSY);
+					i->cpt = 1;
 				}
 			}
 #if 0
@@ -665,7 +720,11 @@ static void phone_check_exception(struct phone_pvt *i)
 				ast_update_use_count();
 			}
 			memset(i->ext, 0, sizeof(i->ext));
-			ioctl(i->fd, PHONE_CPT_STOP);
+			if (i->cpt)
+			{
+				ioctl(i->fd, PHONE_CPT_STOP);
+				i->cpt = 0;
+			}
 			ioctl(i->fd, PHONE_PLAY_STOP);
 			ioctl(i->fd, PHONE_REC_STOP);
 			i->dialtone = 0;
@@ -833,13 +892,11 @@ static int restart_monitor()
 	return 0;
 }
 
-static struct phone_pvt *mkif(char *iface, int mode)
+static struct phone_pvt *mkif(char *iface, int mode, int txgain, int rxgain)
 {
 	/* Make a phone_pvt structure for this interface */
 	struct phone_pvt *tmp;
-#if 0
 	int flags;	
-#endif
 	
 	tmp = malloc(sizeof(struct phone_pvt));
 	if (tmp) {
@@ -852,6 +909,9 @@ static struct phone_pvt *mkif(char *iface, int mode)
 		if (mode == MODE_FXO) {
 			if (ioctl(tmp->fd, IXJCTL_PORT, PORT_PSTN)) 
 				ast_log(LOG_DEBUG, "Unable to set port to PSTN\n");
+		} else {
+			if (ioctl(tmp->fd, IXJCTL_PORT, PORT_POTS)) 
+				ast_log(LOG_DEBUG, "Unable to set port to PSTN\n");
 		}
 		ioctl(tmp->fd, PHONE_PLAY_STOP);
 		ioctl(tmp->fd, PHONE_REC_STOP);
@@ -867,10 +927,8 @@ static struct phone_pvt *mkif(char *iface, int mode)
 		ioctl(tmp->fd, PHONE_VAD, tmp->silencesupression);
 #endif
 		tmp->mode = mode;
-#if 0
 		flags = fcntl(tmp->fd, F_GETFL);
 		fcntl(tmp->fd, F_SETFL, flags | O_NONBLOCK);
-#endif
 		tmp->owner = NULL;
 		tmp->lastformat = -1;
 		tmp->lastinput = -1;
@@ -882,6 +940,12 @@ static struct phone_pvt *mkif(char *iface, int mode)
 		tmp->next = NULL;
 		tmp->obuflen = 0;
 		tmp->dialtone = 0;
+		tmp->cpt = 0;
+		strncpy(tmp->callerid, callerid, sizeof(tmp->callerid));
+		tmp->txgain = txgain;
+		ioctl(tmp->fd, PHONE_PLAY_VOLUME, tmp->txgain);
+		tmp->rxgain = rxgain;
+		ioctl(tmp->fd, PHONE_REC_VOLUME, tmp->rxgain);
 	}
 	return tmp;
 }
@@ -894,7 +958,7 @@ static struct ast_channel *phone_request(char *type, int format, void *data)
 	char *name = data;
 	
 	oldformat = format;
-	format &= (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR);
+	format &= (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW);
 	if (!format) {
 		ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
 		return NULL;
@@ -919,12 +983,36 @@ static struct ast_channel *phone_request(char *type, int format, void *data)
 	return tmp;
 }
 
+/* parse gain value from config file */
+static int parse_gain_value(char *gain_type, char *value)
+{
+	float gain;
+
+	/* try to scan number */
+	if (sscanf(value, "%f", &gain) != 1)
+	{
+		ast_log(LOG_ERROR, "Invalid %s value '%s' in '%s' config\n",
+			value, gain_type, config);
+		return DEFAULT_GAIN;
+	}
+
+	/* multiplicate gain by 1.0 gain value */ 
+	gain = gain * (float)DEFAULT_GAIN;
+
+	/* percentage? */
+	if (value[strlen(value) - 1] == '%')
+		return (int)(gain / (float)100);
+
+	return (int)gain;
+}
+
 int load_module()
 {
 	struct ast_config *cfg;
 	struct ast_variable *v;
 	struct phone_pvt *tmp;
 	int mode = MODE_IMMEDIATE;
+	int txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN; /* default gain 1.0 */
 	cfg = ast_load(config);
 
 	/* We *must* have a config file otherwise stop immediately */
@@ -941,7 +1029,7 @@ int load_module()
 	while(v) {
 		/* Create the interface list */
 		if (!strcasecmp(v->name, "device")) {
-				tmp = mkif(v->value, mode);
+				tmp = mkif(v->value, mode, txgain, rxgain);
 				if (tmp) {
 					tmp->next = iflist;
 					iflist = tmp;
@@ -957,6 +1045,8 @@ int load_module()
 			silencesupression = ast_true(v->value);
 		} else if (!strcasecmp(v->name, "language")) {
 			strncpy(language, v->value, sizeof(language));
+		} else if (!strcasecmp(v->name, "callerid")) {
+			strncpy(callerid, v->value, sizeof(callerid));
 		} else if (!strcasecmp(v->name, "mode")) {
 			if (!strncasecmp(v->value, "di", 2)) 
 				mode = MODE_DIALTONE;
@@ -988,12 +1078,17 @@ int load_module()
 				echocancel = AEC_HIGH;
 			} else 
 				ast_log(LOG_WARNING, "Unknown echo cancellation '%s'\n", v->value);
-		}
+		} else if (!strcasecmp(v->name, "txgain")) {
+			txgain = parse_gain_value(v->name, v->value);
+		} else if (!strcasecmp(v->name, "rxgain")) {
+			rxgain = parse_gain_value(v->name, v->value);
+		}	
 		v = v->next;
 	}
 	ast_pthread_mutex_unlock(&iflock);
 	/* Make sure we can register our Adtranphone channel type */
-	if (ast_channel_register(type, tdesc, AST_FORMAT_G723_1, phone_request)) {
+	if (ast_channel_register(type, tdesc, 
+			AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW, phone_request)) {
 		ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
 		ast_destroy(cfg);
 		unload_module();