[Freeswitch-users] Issue with a=fmtp:18 annexb=no

Sergey Okhapkin sos at sokhapkin.dyndns.org
Thu Feb 13 18:43:45 MSK 2014


application="export" data="sip_append_audio_sdp=a=fmtp:18 annexb=no"

On Thursday 13 February 2014 07:09:16 Sam wrote:
> Hi,
> 
> We are facing an issue with a=fmtp:18 annexb=no.
> 
> Here is the call flow,
> Cisco CUCM ->  Cisco Cube -> FS
> 
> Cisco is expecting in 200 OK ,
> 
>    m=audio 28820 RTP/AVP 18 101 13
>    a=rtpmap:18 G729/8000
>    * a=fmtp:18 annexb=no*
>    a=rtpmap:101 telephone-event/8000
>    a=fmtp:101 0-16
>    a=ptime:20
> 
> But fs is generating without  *a=fmtp:18 annexb=no*
>    m=audio 28820 RTP/AVP 18 101 13
>    a=rtpmap:18 G729/8000
>    a=rtpmap:101 telephone-event/8000
>    a=fmtp:101 0-16
>    a=ptime:20
> 
> Because of that calls are getting fail.
> 
> I am not getting where should we change setting to include that line.
> 
> Log,
> http://pastebin.com/LDHEmCNv
> 
> Please help me to resolve that issue.
> 
> Thanks in advance.
> 
> 
> 
> -----
> Thanks,
> Sam
> --
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> 
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