[asterisk-bugs] [Asterisk 0011918]: Asterisk not playing busy after media bridge

[noreply at bugs.digium.com]

The following issue has been RESOLVED. 
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http://bugs.digium.com/view.php?id=11918 
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Reported By:                remiq
Assigned To:                qwell
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Project:                    Asterisk
Issue ID:                   11918
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     resolved
Asterisk Version:           1.4.17 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
Resolution:                 no change required
Fixed in Version:           
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Date Submitted:             02-04-2008 08:08 CST
Last Modified:              03-11-2008 14:52 CDT
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Summary:                    Asterisk not playing busy after media bridge
Description: 
We are connecting our Asterisk PBX to a Lucent telephone switch via ISDN
PRIs.  The telephone switch provides an authorization code feature where
every call originated from asterisk is immediately answered by the
telephone switch, and prompted for an authorization code, before completing
the call.  The sip phone registered with Asterisk dials a 10 digit number,
hears the prompt, and dials a 4-digit code.  The telephone switch
authenticates the code and attempts to complete the call.  In the event
that the far end is available the telephone switch passes the ringing tones
inband over the pri.  In the event that the far end is busy, the telephone
switch sends an ISDN RELEASE message with the cause: USERBUSY.  Asterisk
receives the RELEASE message and sends a BYE message to the sip phone and a
RELEASE COMPLETE back to the switch. This does NOT result in the user
hearing a busy signal.  Instead, the user hears a click and dead air as if
they were hung up on.  Since there is already a media bridge, once the
Asterisk receives the USERBUSY, Asterisk should play an inband busy tone to
the sip channel.  
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 qwell - 03-11-08 14:52  
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Closing, per comments. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
03-11-08 14:52  qwell          Status                   new => resolved     
03-11-08 14:52  qwell          Resolution               open => no change
required
03-11-08 14:52  qwell          Assigned To               => qwell           
03-11-08 14:52  qwell          Note Added: 0083752                          
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