[asterisk-bugs] [Asterisk 0010667]: Audio problems (one direction) with 2 SIP peers when using queues and DTMF tones

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=10667 
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Reported By:                daphi
Assigned To:                
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Project:                    Asterisk
Issue ID:                   10667
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.11  
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:             09-07-2007 08:08 CDT
Last Modified:              09-10-2007 11:45 CDT
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Summary:                    Audio problems (one direction) with 2 SIP peers when
using queues and DTMF tones
Description: 
Given the standard sip.conf, which is was only modified as specified
below.

The sipgate peer is used for incoming calls only and is routed into a
queue. The main problems is, when the caller sends a dtmf tone the callee
cannot hear the caller anymore, although the caller can hear the callee.

If the sipgate extension is routed directly to the sip phone (321) without
going into the queue first there is no problem with dtmf tones. After the
dtmf tone is transmitted both parties can hear each other again. So the
problem must be related to queue.

We have tested the same setup on Asterisk 1.2.10 without any issues.

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---------------------------------------------------------------------- 
 daphi - 09-10-07 11:45  
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Well, it seems it was our mistake. 
There was an misconfiguration between the DTMF modes set by asterisk an
the sip phone we are using. 

Asterisk has to be set to 'rfc' dtmf mode and the pones (Linksys) have to
be set to dtmf mode 'auto'.

Case can be closed. 

Issue History 
Date Modified   Username       Field                    Change               
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09-10-07 11:45  daphi          Note Added: 0070271                          
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