[asterisk-users] RTCP SR transmission

[jonas kellens]

Nobody knows something about this RTCP SR transmission ??

If it is a configuration setting in Asterisk, my firewall or my
SIP-phone ??


Kind regards,

Jonas.


On Mon, 2009-12-14 at 09:35 +0100, jonas kellens wrote:

> [Dec 14 09:23:18] ERROR[15198]: rtp.c:2482 ast_rtcp_write_sr: RTCP SR
> transmission error to XX.XX.XX.65:5037, rtcp halted Operation not
> permitted
> 
> This is a log entry on a public Asterisk-server. My SIP-client
> (Grandstream GXP2010) can perfectly register to this public
> Asterisk-server.
> 
> My SIP-client is behind a firewall.
> 
> Port 5060 is no problem because SIP-registration succeeds.
> RTP is also no problem because the 2 endpoints can talk to each other.
> RTCP seems a problem. So there is RTP-traffic on port 5036 (even port)
> and RTCP on the next port (5037).
> 
> What does Asterisk mean when RTCP SR transmission is not
> permitted ????
> 
> Is this a setting in Asterisk ? My Endian firewall ? My Grandstream
> SIP phone ??
> 
> Thanks,
> 
> Jonas.
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