Hi again.

I've had some users complain that they cannot hangup calls and have to wait for the default SIP timeout before the client hangs up.

Looking at the kamailio logs, I noticed something strange regarding RTPengine. What's the deal with the [::]:0 address?

Could this be the cause of the issues users have reported?

I also see in siremis accounting that users indeed try to repeatedly send out the BYE message to hang up the call but siremis shows a bunch of 481 responses from kamailio.

I have commented out ipv6 in the /etc/default/rtp/ngcp-rtpengine-daemon file yet I still see this in the logs:

Sep 26 00:55:19  rtpengine[2950]: [gj0LMNqHnWDBc15BiNAWD7UH29LZfjZD] --- Tag '', created 1:00 ago, in dialogue with '(none)'

Sep 26 00:55:19  rtpengine[2950]: [gj0LMNqHnWDBc15BiNAWD7UH29LZfjZD] ------ Media #1, port 30034 <>            [::]:0    , 0 p, 0 b, 0 e

Sep 26 00:55:19  rtpengine[2950]: [gj0LMNqHnWDBc15BiNAWD7UH29LZfjZD] ------ Media #1, port 30035 <>            [::]:0     (RTCP), 0 p, 0 b, 0 e

Sep 26 00:55:19  rtpengine[2950]: [gj0LMNqHnWDBc15BiNAWD7UH29LZfjZD] --- Tag 'D77HuXhJbqiBg.pBF3LkwC8411VT2Vye', created 1:00 ago, in dialogue with ''

Sep 26 00:55:19  rtpengine[2950]: [gj0LMNqHnWDBc15BiNAWD7UH29LZfjZD] ------ Media #1, port 30044 <>  190.56.xx.xx:63572, 0 p, 0 b, 0 e

Sep 26 00:55:19  rtpengine[2950]: [gj0LMNqHnWDBc15BiNAWD7UH29LZfjZD] ------ Media #1, port 30045 <>  190.56.xx.xx:3058  (RTCP), 0 p, 0 b, 0 e

I imagine I'm doing something wrong in the config but I'm not sure why I see an ipv6 address and why the BYEs receive 481 responses.

Any clues as to where I should look?

Thanks,

Peter