Btw, the version of kamailio is 4.2.3.  

Thank you.

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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@10.110.7.242 for seqno 1 (Critical Response) -- See 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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