kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-09-02 19:16:15 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merged revisions 309445 via svnmerge from

Browse Source 
https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r309445 | rmudgett | 2011-03-04 09:22:04 -0600 (Fri, 04 Mar 2011) | 46 lines
  
  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/trunk@309446 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2011-03-04 15:28:20 +00:00
parent 3cda82a379
commit 928ec2b990
5 changed files with 147 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
funcs/func_channel.c
View File

@@ -224,6 +224,22 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
</enumlist>
<para><emphasis>chan_dahdi</emphasis> provides the following additional options:</para>
<enumlist>
<enum name="dahdi_channel">
<para>R/O DAHDI channel related to this channel.</para>
</enum>
<enum name="dahdi_span">
<para>R/O DAHDI span related to this channel.</para>
</enum>
<enum name="dahdi_type">
<para>R/O DAHDI channel type, one of:</para>
<enumlist>
<enum name="analog" />
<enum name="mfc/r2" />
<enum name="pri" />
<enum name="pseudo" />
<enum name="ss7" />
</enumlist>
</enum>
<enum name="keypad_digits">
<para>R/O PRI Keypad digits that came in with the SETUP message.</para>
</enum>