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Re: [Linphone-users] SIP Session Timers


From: Simon Morlat
Subject: Re: [Linphone-users] SIP Session Timers
Date: Mon, 07 Feb 2011 21:29:08 +0100

Hi Dan,

Actually what is implemented when use_session_timers=1 is accepting SIP
updates and answering correctly to them, but linphone does not send any
SIP update or reINVITE to check the session is alive.
However it detects loss of RTP streams, after 30 seconds of RTP
inactivity (RTP and RTCP), then it hangups the call.

Simon

Le mardi 01 février 2011 à 19:43 -0500, Dan Le a écrit :
> Hi, I'm newly joined to the mailing list, and was hoping someone could
> clarify a few things in linphone. 
> 
> 
> There's scattered reports that SIP Session Timers (RFC 4028) may be
> supported in linphone, but attempting to enable it, I can't seem to
> trigger it. I'm using version 3.3.2 of linphone.
> 
> 
> I've set use_session_timers=1 under [sip] in my linphonerc config
> file, and then dial the linphonec agent; after the call connects, I
> kill the call on the originator side. Linphone appears to be still in
> the call, and I would expect after some time, it would send a SIP
> packet to check if the call exists (and subsequently terminating the
> call when it find it no longer exists), but it doesn't, at least not
> after 5min of waiting.
> 
> 
> I would be grateful for any insights.
> 
> 
> Thanks,
> Dan
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