[asterisk-bugs] [Asterisk 0015389]: no audio with SIP call to ISDN PRI, if neither Progress or Proceeding are received.

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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https://issues.asterisk.org/view.php?id=15389 
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Reported By:                alecdavis
Assigned To:                
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Project:                    Asterisk
Issue ID:                   15389
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           SVN 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): 1.6.1 
SVN Revision (number only!): 202764 
Request Review:              
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Date Submitted:             2009-06-24 08:01 CDT
Last Modified:              2009-06-24 08:01 CDT
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Summary:                    no audio with SIP call to ISDN PRI, if neither
Progress or Proceeding are received.
Description: 
After an upgrade from Asterisk SVN-r178446 to Asterisk 1.6.1-Branch.

Calling from SIP a phone to our ISDN PABX there is now no audio in either
direction.
Calling from the PABX into an Asterisk SIP phone audio is fine.

Audio on outbound call works fine on Asterisk 1.6.1.0-rc3 Tag,
but is broken on Asterisk 1.6.1.0-rc4 Tag.

The original patch (noted below) needs further work, to ensure audio path
is up when call is 'answered', may be earlier, when 'ringing' is received. 
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Issue History 
Date Modified    Username       Field                    Change               
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2009-06-24 08:01 alecdavis      New Issue                                    
2009-06-24 08:01 alecdavis      Asterisk Version          => SVN             
2009-06-24 08:01 alecdavis      Regression                => No              
2009-06-24 08:01 alecdavis      SVN Branch (only for SVN checkouts, not tarball
releases) => 1.6.1           
2009-06-24 08:01 alecdavis      SVN Revision (number only!) => 202764          
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