The distinctive ring feature interferes with detecting Caller ID and
appears to have been broken for years.  What happens is if you have a
ring-ring cadence as used in the UK you get too many DAHDI events for the
distinctive ring pattern array and Caller ID detection is aborted.  I
think when Zapata/DAHDI added the ring begin event it broke distinctive
ring.  More events happen than before and the code does no filtering of
which event times are recorded in the pattern array.

* Made distinctive ring only record the ringt count when the ring ends
instead of on just any DAHDI event.  Distinctive ring can be ring,
ring-ring, ring-ring-ring, or different ring durations for the up to three
rings.

* Fixed the distinctive ring detection enable (chan_dahdi.conf option
usedistinctiveringdetection) to be per port instead of somewhat per port
and somewhat global.  This has been broken since v1.8.

* Fixed using the default distinctive ring context when the detected
pattern does not match any configured dringX patterns.  The default
context did not get set when the previous call was a matched distinctive
ring pattern and the current call is not matched.  This has been broken
since v1.8.

* Made distinctive ring have no effect on Caller ID detection when it is
disabled.  Caller ID detection just monitors for 10 seconds before giving
up.

* Fixed leak of struct callerid_state memory when a polarity reversal
during Caller ID detection causes the incoming call to be aborted.

DAHDI-1143
AST-1545
ASTERISK-24825 #close
Reported by: Richard Mudgett

ASTERISK-17588
Reported by: Daniel Flounders

Review: https://reviewboard.asterisk.org/r/4444/
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* SS7 support now requires libss7 v2.0 or later.  The new libss7 is not
backwards compatible.

* Added SS7 support for connected line and redirecting.

* Most SS7 CLI commands are reworked as well as new SS7 commands added.
See online CLI help.

* Added several SS7 config option parameters described in
chan_dahdi.conf.sample.

* ISUP timer support reworked and now requires explicit configuration.
See ss7.timers.sample.

Special thanks to Kaloyan Kovachev for his support and persistence in
getting the original patch by adomjan updated and ready for release.

SS7-27 #close
Reported by: adomjan


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@416416 65c4cc65-6c06-0410-ace0-fbb531ad65f3

This change is in preparation for external MWI support.

Removed code from the system for normal mailbox handling that appends
@default to the mailbox identifier if it does not have a context.  The
only exception is the legacy hasvoicemail users.conf option.  The legacy
option will only work for app_voicemail mailboxes.  The system cannot make
any assumptions about the format of the mailbox identifer used by
app_voicemail.

chan_sip and chan_dahdi/sig_pri had the most changes because they both
tried to interpret the mailbox identifier.  chan_sip just stored and
compared the two components.  chan_dahdi actually used the box
information.

The ISDN MWI support configuration options had to be reworked because
chan_dahdi was parsing the box@context format to get the box number.  As a
result the mwi_vm_boxes chan_dahdi.conf option was added and is documented
in the chan_dahdi.conf.sample file.

Review: https://reviewboard.asterisk.org/r/3072/
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* Add hwtxgain and hwrxgain config options to chan_dahdi.conf with
documentation in chan_dahdi.conf.sample.

(closes issue ASTERISK-22429)
Reported by: Jaco Kroon
Patches:
      jira_asterisk_22429_hwgain_trunk.patch (license #5621) patch uploaded by rmudgett


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@400950 65c4cc65-6c06-0410-ace0-fbb531ad65f3

* Remember the swgain setting from CLI "dahdi set swgain" command so the
CLI "dahdi show channel" output will reflect the current setting.

* Updated CLI "dahdi set hwgain" and "dahdi set swgain" documentation.

(issue ASTERISK-22429)
Reported by: Jaco Kroon
Patches:
      jira_asterisk_22429_v1.8_v2.patch (license #5621) patch uploaded by rmudgett
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analog_lib_handles --> dahdi_analog_lib_handles
enable_dtmf_detect --> dahdi_dtmf_detect_enable
disable_dtmf_detect --> dahdi_dtmf_detect_disable
dahdi_enable_ec --> dahdi_ec_enable
dahdi_disable_ec --> dahdi_ec_disable
update_conf --> dahdi_conf_update
dahdi_link --> dahdi_master_slave_link
dahdi_unlink --> dahdi_master_slave_unlink

(closes issue ASTERISK-22129)
Reported by: rmudgett


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395167 65c4cc65-6c06-0410-ace0-fbb531ad65f3

Created a native_dahdi bridging technology for use with the new bridging
API.

The new bridging technology is part of the chan_dahdi channel driver
because it is very specific to that driver.  Rather than include the new
code directly into chan_dahdi.c the new bridge technology is in its own
file and linked into chan_dahdi.so.  A large part of this change is the
mechanical process of moving declarations around so chan_dahdi.c can be
split up into more files later.

* Changed the bridging core to pass NULL frames into the channel
technologies instead of discarding them.  The channel technologies may
need the proding to determine if their configuration is still valid.

(closes issue ASTERISK-21886)
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/2681/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395154 65c4cc65-6c06-0410-ace0-fbb531ad65f3