[asterisk-bugs] [Asterisk 0013569]: Asterisk sending the wrong codec on re-invite.

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=13569 
====================================================================== 
Reported By:                bkw918
Assigned To:                dvossel
====================================================================== 
Project:                    Asterisk
Issue ID:                   13569
Category:                   Channels/chan_sip/CodecHandling
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.2.0-beta1 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): 1.6.1 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2008-09-26 17:48 CDT
Last Modified:              2009-05-15 07:18 CDT
====================================================================== 
Summary:                    Asterisk sending the wrong codec on re-invite.
Description: 
FreeSWITCH sends invite out to tf.voipmich.com with PCMU, PCMA, GSM.  The
call is answered and setup using GSM since its listed first in the Answer
we receive from Asterisk.  A re-invite promptly follows offering
GSM,PCMU,PCMA to which we 200 OK with ONLY GSM in the SDP in our 200 OK.  

Promptly there after Asterisk starts sending PCMU packets.  The re-invite
is considered a new Session Offer Answer and Asterisk ignores the Answer
and sends a media format not in the new Answer.  

Asterisk PBX SVN-branch-1.6.0-r140976-/trunk is what I can see in the SDP
from John's equipment.  He has disabled re-invites pending a fix for this.

====================================================================== 

---------------------------------------------------------------------- 
 (0104810) file (administrator) - 2009-05-15 07:18
 https://issues.asterisk.org/view.php?id=13569#c104810 
---------------------------------------------------------------------- 
bkw918: I disagree on that last note. We *do* care and this issue has been
kept open for awhile to try to bring it to a resolution. The entire problem
though was that we did not know how the Asterisk machines were actually
configured, so in order to reproduce this I guess we'll just have to guess
on everything and hope for the best.

After re-reading the notes I agree with Matt's analysis and will work with
dvossel on this. I also think we will be able to recreate this using a sipp
scenario file. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-05-15 07:18 file           Note Added: 0104810                          
======================================================================