[asterisk-bugs] [Asterisk 0012367]: Codec negotiation failure

noreply at bugs.digium.com noreply at bugs.digium.com
Fri Apr 4 08:31:16 CDT 2008


A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=12367 
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Reported By:                mascool
Assigned To:                
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Project:                    Asterisk
Issue ID:                   12367
Category:                   Channels/chan_sip/CodecHandling
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.18 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             04-03-2008 21:33 CDT
Last Modified:              04-04-2008 08:31 CDT
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Summary:                    Codec negotiation failure
Description: 
I have a provider that supports both ulaw and g729. Provider set to allowed
ulaw and g729 (in that order). Aastra phone set to use G729 only. Call
fails with "No audio format found to offer" even though it should be ok
based on this line:

Capabilities: us - 0x104 (ulaw|g729), peer - audio=0x105
(g723|ulaw|g729)/video=0x0 (nothing), combined - 0x104 (ulaw|g729)

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---------------------------------------------------------------------- 
 mascool - 04-04-08 08:31  
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Why would I need the g729 codec? If both the provider and the second leg
support g729, shouldn't asterisk let g729 pass through? If I load the codec
then 1st leg is ulaw (from provider) and second is g729 (to the phone) 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
04-04-08 08:31  mascool        Note Added: 0085027                          
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