[SR-Users] Kamailio with dispatcher not send BYE to Asterisk.

[Sergiu Pojoga]

32 seconds is the default asterisk T2 timer. Probably some ACK is not being
relayed following BYE.

Would help to see some sip traces.

On Wed, May 2, 2018, 5:40 PM Jeferson Oliveira, <
oliveira1.jeferson at servicescobrancas.com.br> wrote:

> Btw, the version of kamailio is 4.2.3.
>
> Thank you.
> --
> On 05/02/2018 06:29 PM, Jeferson Oliveira wrote:
>
> Hello everyone,
>
> I have an error that I have not yet been able to solve and would like the
> help of colleagues to indicate a correct path.
> The problem that is occurring is that when the client disconnects the call
> kamailio is not sending the BYE forward until arriving at the asterisk.
>
> Both in the test scenario and in the production scenario the problem is
> the same and the message I see in the capture is 404 Not here, msg this
> coming from kamailio.
>
> Production scenario.
>
> PSTN <----------> Dialer --------->kamailio -----------> asterisk1
>
> -----------> asterisk2
>
> Test scenario.
>
> sipp generated calls ------> kamailio -------> asterisk1
>
>                                                           ------->
> asterisk2
>
>
> When this occurs, the calls that are disconnected by the client are in a
> "zombie" state in asterisk, and end up being terminated by timeout with the
> following message in the asterisk CLI:
>
> *[Apr 25 17:49:59] WARNING[2121]: chan_sip.c:4072 retrans_pkt:
> Retransmission timeout reached on transmission 22-6073 at 10.110.7.242
> <22-6073 at 10.110.7.242> for seqno 1 (Critical Response) -- See
> https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
> <https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions>*
> *Packet timed out after 31999ms with no response*
>
> In the sipp panel I see in the Retransmission column several incrementing
> counters, as per the attachment.
>
> If I take the kamailio from the move and point the sipp to only one of the
> asterisk, the retransmissions do not happen and BYE follows normally.
>
> My kamailio.cfg configuration file can be downloaded from this url:
> https://drive.google.com/file/d/1bBj4GEZSPrp1iJXSLWQ4Z6g59tEFjnNT/view?usp=sharing
>
>
> Thank you very much.
> --
>
>
>
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>
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