diff options
| author | Richard Mudgett <rmudgett@digium.com> | 2013-04-03 20:20:09 +0000 |
|---|---|---|
| committer | Richard Mudgett <rmudgett@digium.com> | 2013-04-03 20:20:09 +0000 |
| commit | 79818112fdc9190e4dccf632d403d35343785bdf (patch) | |
| tree | f7d0f06ecfe95a74d2b02e615d13625f008d14b2 /channels/sig_pri.h | |
| parent | 1cafccdf877f623bee5d4eb3c32c7fe4aa605678 (diff) | |
chan_dahdi: Add inband_on_proceeding compatibility option.
The new inband_on_proceeding option causes Asterisk to assume inband audio
may be present when a PROCEEDING message is received.
Q.931 Section 5.1.2 says the network cannot assume that the CPE side has
attached to the B channel at this time without explicitly sending the
progress indicator ie informing the CPE side to attach to the B channel
for audio. However, some non-compliant ISDN switches send a PROCEEDING
without the progress indicator ie indicating inband audio is available and
assume that the CPE device has connected the media path for listening to
ringback and other messages.
ASTERISK-17834 which causes this issue was dealing with a non-compliant
network switch.
(closes issue ASTERISK-21151)
Reported by: Gianluca Merlo
Tested by: rmudgett
........
Merged revisions 384685 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........
Merged revisions 384689 from http://svn.asterisk.org/svn/asterisk/branches/11
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@384696 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'channels/sig_pri.h')
| -rw-r--r-- | channels/sig_pri.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/channels/sig_pri.h b/channels/sig_pri.h index db052862d..805ed9b48 100644 --- a/channels/sig_pri.h +++ b/channels/sig_pri.h @@ -470,6 +470,8 @@ struct sig_pri_span { * appended to the initial_user_tag[]. */ unsigned int append_msn_to_user_tag:1; + /*! TRUE if a PROCEEDING message needs to unsquelch the received audio. */ + unsigned int inband_on_proceeding:1; #if defined(HAVE_PRI_MCID) /*! \brief TRUE if allow sending MCID request on this span. */ unsigned int mcid_send:1; |