Richard Mudgett 5b9f9f78ca Get real channel of a DAHDI call. ...

Starting with Asterisk v1.8, the DAHDI channel name format was changed for
ISDN calls to: DAHDI/i<span>/<number>[:<subaddress>]-<sequence-number>

There were several reasons that the channel name had to change.

1) Call completion requires a device state for ISDN phones.  The generic
device state uses the channel name.

2) Calls do not necessarily have B channels.  Calls placed on hold by an
ISDN phone do not have B channels.

3) The B channel a call initially requests may not be the B channel the
call ultimately uses.  Changes to the internal implementation of the
Asterisk master channel list caused deadlock problems for chan_dahdi if it
needed to change the channel name.  Chan_dahdi no longer changes the
channel name.

4) DTMF attended transfers now work with ISDN phones because the channel
name is "dialable" like the chan_sip channel names.

For various reasons, some people need to know which B channel a DAHDI call
is using.

* Added CHANNEL(dahdi_span), CHANNEL(dahdi_channel), and
CHANNEL(dahdi_type) so the dialplan can determine the B channel currently
in use by the channel.  Use CHANNEL(no_media_path) to determine if the
channel even has a B channel.

* Added AMI event DAHDIChannel to associate a DAHDI channel with an
Asterisk channel so AMI applications can passively determine the B channel
currently in use.  Calls with "no-media" as the DAHDIChannel do not have
an associated B channel.  No-media calls are either on hold or
call-waiting.

(closes issue #17683)
Reported by: mrwho
Tested by: rmudgett

(closes issue #18603)
Reported by: arjankroon
Patches:
      issue17683_18603_v1.8_v2.patch uploaded by rmudgett (license 664)
Tested by: stever28, rmudgett


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@309445 65c4cc65-6c06-0410-ace0-fbb531ad65f3

2011-03-04 15:22:04 +00:00

..

h323

Comment out a rule that likes to run implicitly unnecessarily, breaking builds

2010-06-03 14:48:09 +00:00

misdn

Merged revision 296575 from

2010-11-29 20:46:03 +00:00

sip

Merged revisions 304244 via svnmerge from

2011-01-26 20:43:27 +00:00

xpmr

AST-2009-005

2009-08-10 19:20:57 +00:00

chan_agent.c

Merged revisions 300520 via svnmerge from

2011-01-04 21:53:27 +00:00

chan_alsa.c

Add load priority order, such that preload becomes unnecessary in most cases

2010-07-20 19:35:02 +00:00

chan_bridge.c

Add load priority order, such that preload becomes unnecessary in most cases

2010-07-20 19:35:02 +00:00

chan_console.c

Merged revisions 297534 via svnmerge from

2010-12-03 17:41:30 +00:00

chan_dahdi.c

Get real channel of a DAHDI call.

2011-03-04 15:22:04 +00:00

chan_gtalk.c

Fixes issue with outbound google voice calls not working.

2010-12-09 21:32:20 +00:00

chan_h323.c

Add the ability for ast_find_ourip to return IPv4, IPv6 or both.

2010-10-14 15:15:12 +00:00

chan_iax2.c

Reverse sense of an error test when reading from astdb.

2011-02-01 22:48:16 +00:00

chan_jingle.c

Add the ability for ast_find_ourip to return IPv4, IPv6 or both.

2010-10-14 15:15:12 +00:00

chan_local.c

Merged revisions 306126 via svnmerge from

2011-02-03 21:03:26 +00:00

chan_mgcp.c

Add parking extension for non-default parking lots.

2010-09-15 19:22:15 +00:00

chan_misdn.c

Merged revision 296575 from

2010-11-29 20:46:03 +00:00

chan_multicast_rtp.c

Changing previous revisions 301845/301847 to use ast_sockaddr_setnull() instead

2011-01-14 20:11:55 +00:00

chan_nbs.c

Missed these two channel drivers on the codec_bits merge

2009-11-06 19:38:33 +00:00

chan_oss.c

Expand the caller ANI field to an ast_party_id

2010-07-14 16:58:03 +00:00

chan_phone.c

Merged revisions 284593,284595 via svnmerge from

2010-09-02 05:00:34 +00:00

chan_phone.h

rename DialTone.h to chan_phone.h because chan_phone.c is the only file using it

2008-05-28 20:00:21 +00:00

chan_sip.c

Merged revisions 309255 via svnmerge from

2011-03-02 19:54:20 +00:00

chan_skinny.c

Merged revisions 287642 via svnmerge from

2010-09-20 21:29:46 +00:00

chan_unistim.c

ast_callerid restructuring

2010-07-14 15:48:36 +00:00

chan_usbradio.c

Merged revisions 284665 via svnmerge from

2010-09-02 16:11:15 +00:00

chan_vpb.cc

Expand the caller ANI field to an ast_party_id

2010-07-14 16:58:03 +00:00

console_board.c

import the recent additions for video console into trunk,

2008-06-29 21:17:14 +00:00

console_gui.c

Const-ify the world (or at least a good part of it)

2009-05-21 21:13:09 +00:00

console_video.c

Merged revisions 284593,284595 via svnmerge from

2010-09-02 05:00:34 +00:00

console_video.h

implement the 'freeze' function for incoming frames;

2008-06-30 15:45:15 +00:00

iax2-parser.c

Informational message, not an error.

2010-01-28 20:00:09 +00:00

iax2-parser.h

Remove built-in AES code and use optional_api instead

2010-07-21 19:11:32 +00:00

iax2-provision.c

AST-2009-005

2009-08-10 19:20:57 +00:00

iax2-provision.h

…

iax2.h

Expand codec bitfield from 32 bits to 64 bits.

2009-11-04 14:05:12 +00:00

Makefile

Extract sig_ss7 out of chan_dahdi.

2010-06-07 20:04:42 +00:00

misdn_config.c

Enhancements to connected line and redirecting work.

2010-05-17 15:36:31 +00:00

sig_analog.c

Chan_dahdi does not retain CID when detecting DTMF CID without polarity reversal.

2011-03-01 18:44:05 +00:00

sig_analog.h

Merged revisions 296166 via svnmerge from

2010-11-24 22:49:48 +00:00

sig_pri.c

Get real channel of a DAHDI call.

2011-03-04 15:22:04 +00:00

sig_pri.h

Get real channel of a DAHDI call.

2011-03-04 15:22:04 +00:00

sig_ss7.c

Merged revisions 303769 via svnmerge from

2011-01-25 17:49:20 +00:00

sig_ss7.h

Merged revisions 303769 via svnmerge from

2011-01-25 17:49:20 +00:00

vcodecs.c

Const-ify the world (or at least a good part of it)

2009-05-21 21:13:09 +00:00

vgrabbers.c

free memory used by the x11 grabber when closing it.

2008-07-14 16:50:54 +00:00