[asterisk-bugs] [Asterisk 0013455]: Need to remove "silenceSupp" parameter from SDP

[Asterisk Bug Tracker]

The following issue has been UPDATED. 
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http://bugs.digium.com/view.php?id=13455 
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Reported By:                sujit
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13455
Category:                   Channels/chan_sip/Interoperability
Reproducibility:            have not tried
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.2.X 
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:             2008-09-10 05:40 CDT
Last Modified:              2008-09-10 08:29 CDT
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Summary:                    Need to remove "silenceSupp" parameter from SDP
Description: 
Hi There,

 After successful registration of the the  SIP server,
while trying to make outgoing call Server is sending  "500 Server
Internal
Error" as a response of the INVITE. The reason is in the SDP of INVITE,
asterisk is sending "a=silenceSupp:off - - - -". 

   While incoming call to the nunber, as soon as we off-hook , call is
getting
disconnected. As SDP of 200 OK also contains  "a=silenceSupp:off - - -
-",
server is responding with BYE.


   We are sure about this reason. Because previously for other vendor we
faced
same problem. We disable the VAD feature and we were able to make incoming
and
outgoing call. In that case the attribute "a=silenceSupp:off - - - -" is
NOT
present in SDP.

  So we need some configuration by which we can make completely remove
this
attribute line from SDP. 

   Please advise how to resolve this issue.

Thanks !
~Sujit Das
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2008-09-10 08:29 blitzrage      Disclaimer on File?       => N/A             
2008-09-10 08:29 blitzrage      Severity                 major => minor      
2008-09-10 08:29 blitzrage      Category                 Applications/app_dial
=> Channels/chan_sip/Interoperability
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