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| author | Richard Mudgett <rmudgett@digium.com> | 2011-03-04 15:28:20 +0000 |
|---|---|---|
| committer | Richard Mudgett <rmudgett@digium.com> | 2011-03-04 15:28:20 +0000 |
| commit | 928ec2b9903346f6e3d274c4addace48fb8f8624 (patch) | |
| tree | f3cafb2098bf62294b6581078f8b3e29a8caba83 /channels/sig_pri.h | |
| parent | 3cda82a379fc3714ea82cb45ee10c9aae0094242 (diff) | |
Merged revisions 309445 via svnmerge from
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
Diffstat (limited to 'channels/sig_pri.h')
| -rw-r--r-- | channels/sig_pri.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/channels/sig_pri.h b/channels/sig_pri.h index 2d41664c0..f4aef912d 100644 --- a/channels/sig_pri.h +++ b/channels/sig_pri.h @@ -200,6 +200,16 @@ struct sig_pri_callback { void (* const open_media)(void *pvt); + /*! + * \brief Post an AMI B channel association event. + * + * \param pvt Private structure of the user of this module. + * \param chan Channel associated with the private pointer + * + * \return Nothing + */ + void (* const ami_channel_event)(void *pvt, struct ast_channel *chan); + /*! Reference the parent module. */ void (*module_ref)(void); /*! Unreference the parent module. */ |