Re: [Linphone-developers] Urgent : The call ends at 30 seconds

[Rob Dyck]

Don't confuse SIP ACK with TCP ACK. Of course UDP does not use ACK but SIP is 
a level above the transport. SIP can use UDP or TCP and others as well for 
transport. ACK is a SIP method just as INVITE, BYE, CANCEL, etc.

If the callee does not receive the ACK it will drop the call.
Rob

On Thursday, September 2, 2021 4:09:07 A.M. PDT medo befroh wrote:
> Thank you all for your responses.
> 
> In my installation i'm using UDP, and as i know UDP does not use ACK
> packets.
> 
> I used wireshark to detect RESET packets or something that end the call but
> without success.
> 
> I just noticed the normal RTP packets and RTCP packets with this message :
> 'RTCP 322 Sender Report   Source description   Extended report (RFC 3611)  
> Extended report (RFC 3611)   Extended report (RFC 3611)'
> 
> Thanks in advance.
> ________________________________
> De : German Cancio <german.cancio.melia@cern.ch>
> Envoyé : mardi 31 août 2021 16:03
> À : linphone-developers@nongnu.org <linphone-developers@nongnu.org>
> Cc : medo befroh <medo.bf88@outlook.fr>
> Objet : Re: [Linphone-developers] Urgent : The call ends at 30 seconds
> 
> Medo,
> 
> You may want to look into the client logs for understanding what is causing
> the call to be terminated. A missing ACK will end up tearing down the
> communication after 32s, so Rob is likely pointing you to the right issue…
> 
> Germán
> 
> > On 31 Aug 2021, at 16:26, Rob Dyck <rob.dyck@telus.net> wrote:
> > 
> > I haven't tried flexisip so I can't help much there.
> > If the parties were able to speak for 30 seconds then I think you are
> > missing the ACK. If there is no audio or only one way audio, linphone
> > will give up waiting. Have you tried disabling all the firewalls for
> > testing purposes?> 
> > On Tuesday, August 31, 2021 1:15:30 A.M. PDT medo befroh wrote:
> >> I didn't find anything in Wireshark and flexisip logs. I noticed this is
> >> an
> >> error that almost all flexisip users have.
> >> 
> >> If someone have faced the same issue, please tell me how you solved it.
> >> 
> >> Thanks
> >> ________________________________
> >> De : Rob Dyck <rob.dyck@telus.net>
> >> Envoyé : lundi 30 août 2021 17:39
> >> À : linphone-developers@nongnu.org <linphone-developers@nongnu.org>
> >> Cc : medo befroh <medo.bf88@outlook.fr>
> >> Objet : Re: [Linphone-developers] Urgent : The call ends at 30 seconds
> >> 
> >> Typical causes
> >> Callee didn't receive ACK after sending 200OK
> >> One or both parties did not detect media
> >> 
> >> Wireshark is useful if not using encryption.
> >> 
> >> On Monday, August 30, 2021 8:24:40 A.M. PDT medo befroh wrote:
> >>> Hello Community,
> >>> 
> >>> I have installed flexisip successfully, all features(chat, calls..) are
> >>> working, but i have a problem just after 30 seconds of calling, it ends
> >>> automatically and i have not found the cause of this issue.
> >>> 
> >>> If you have faced the same issue, please tell me how you solved it.
> >>> 
> >>> Thanks in advance
> > 
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