When similar problem occurred, I traced the issue to remote GSM
gateway with poor protocol stack.
The asterisk was doing exactly what it was supposed to do.
The IMMEDIATE work around we used was to put maximum call timer into
extensions.conf
exten => s, 6,Set(TIMEOUT(absolute)=3660)
This gives one hour+one minute. With average call duration below 30 minutes
this worked quite well for our GSM traffic purposes.
You set to any value appropriate to your traffic.
..mike..
Currently I am running 120 VoIP SIP channels on my asterisk server
but each day 2, 3 calls got hanged in asterisk, and on asterisk CLI
"show channels" showing us as call UP but in real there is no call.
When asterisk restarted the hanged calls removed from CLI with very
high duration which damaged our billing system and customers
accounts goes in high negative.
First I tried to get call info from asterisk mysql CDR using billsec
field but the same result then I create PERL AGI to get duration
from "ANSWEREDTIME" and same result.
Please have a look to the following URL which I put the result of
"show channel <channelname>" you can see the DIALSTATUS=CONGESTION
but Elapsed Time: 20h54m16s which really strange and out of my mind
to control such as call.
http://www.emafone.net/bugs.html
Please advice us if it is Bug and solved in some ver or its need
some configuration to avoid this issue.
This is in both ver of asterisk 1.2 and 1.4
--------
Regard,
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