8 Jul
2016
8 Jul
'16
1:44 a.m.
Good day.
I think I have a lead on this to help come up with a resolution. I might be able to do it
myself but I need to really dig into the code and kamailio to understand it better.
First, I was using the sip_trace module along with Homer to gather the info, but it did
seem incomplete. The work of the SCA module is not picked up by the sip_trace module. I
believe because it if doing instead script work and sending its own packets, which would
not be picked up by the script anymore. I finally used sngrep (referred by Javan Strika
who is also having the issue) and was able to see the entire conversations for the
SCA's. But the sngrep in a "HEP" and "non verbose" mode seems to
have a memory leak and will crash kamailio due to no more memory. So, I am now turning to
captagent to get a more stable system to get better traces for this issue.
Now for the SCA problem. It seems that the unreleased "seized event" resides
with the "held" event and the reinvite/invite that occurs to kamailio. It seems
to get lost, hungup. pushed around or jacked up in the 'route[WITHINDLG]' section
of the script and the reinvites/invites will keep happening until a timeout occurs or the
sometimes I have seen the 404 Not here error occur.
I know this is not much to go on until I upload a good trace but maybe a brainiac might
go...Oh, I know that problem and quicker fix.
Using Kamailio 4.2.7 with latest patches. CentOS 6.7-latest. One test bed is a mix of 2
Polycom VVX [34]10 with 5.4.4 and 1 Polycom 650 with 3.3.5; Another is a mix of 14
Polycoms VVX [34]10 with 5.3.2, another is a mix of 4 Polycom VVX [34]10 with 5.3.2
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