[asterisk-bugs] [Asterisk 0017404]: [patch] [regression] audio delay when bridging calls related to timestamp mismatch

Asterisk Bug Tracker noreply at bugs.digium.com
Tue Dec 7 16:58:56 CST 2010


A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=17404 
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Reported By:                sdolloff
Assigned To:                jpeeler
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Project:                    Asterisk
Issue ID:                   17404
Category:                   Core/RTP
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     closed
Target Version:             1.4.36
Asterisk Version:           SVN 
JIRA:                       SWP-1582 
Regression:                 Yes 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 265613 
Request Review:              
Resolution:                 fixed
Fixed in Version:           
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Date Submitted:             2010-05-26 11:55 CDT
Last Modified:              2010-12-07 16:58 CST
====================================================================== 
Summary:                    [patch] [regression] audio delay when bridging calls
related to timestamp mismatch
Description: 
when answering an inbound call, the remote party hears a delay from 1-3
seconds.  The audio is being transmitted, but the rtp timestamps take a
huge jump when the call is answered even though the rtp sequencing is
correct.
This started occurring after 1.4.28.  reproduced with 1.4.30, 1.4.32 and
SVN from 05/25/2010.  This has been reproduced on multiple servers with
multiple handsets and multiple remote endpoints.  
======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
related to          0016941 SIP RTP audio delay
related to          0015824 Incoming Only Latency And Jitters every...
related to          0017007 [patch] RTP Timestamp changes after tra...
====================================================================== 

---------------------------------------------------------------------- 
 (0129441) svnbot (reporter) - 2010-12-07 16:58
 https://issues.asterisk.org/view.php?id=17404#c129441 
---------------------------------------------------------------------- 
Repository: asterisk
Revision: 297824

_U  branches/1.6.2/
U   branches/1.6.2/main/channel.c

------------------------------------------------------------------------
r297824 | jpeeler | 2010-12-07 16:58:55 -0600 (Tue, 07 Dec 2010) | 19
lines

Merged revisions 297823 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r297823 | jpeeler | 2010-12-07 16:57:48 -0600 (Tue, 07 Dec 2010) | 12
lines
  
  Revert code that changed SSRC for DTMF.
  
  Some previous behavior was attempted to be restored, but mistakingly I
did
  not realize that the previous behavior was incorrect. This fixes DTMF
not
  being detected since DTMF shouldn't cause the SSRC to change.
  
  (related to issue https://issues.asterisk.org/view.php?id=17404)
  (closes issue https://issues.asterisk.org/view.php?id=18189)
  (closes issue https://issues.asterisk.org/view.php?id=18352)
  Reported by: marcbou
  Tested by: cmbaker82
........

------------------------------------------------------------------------

http://svn.digium.com/view/asterisk?view=rev&revision=297824 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-12-07 16:58 svnbot         Checkin                                      
2010-12-07 16:58 svnbot         Note Added: 0129441                          
======================================================================




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