2016-09-09 10:54:19.892289 [NOTICE] switch_core_state_machine.c:315 sofia/external/+918558897592 has executed the last dialplan instruction, hanging up.
So I guess I would look at the dialplan.
There is also a lot of retransmissions between your freeswitch and your asterisk gateway, which is maybe not related to your problem but it doesn’t appear to me like you have a quality network situation.
The log is a bit difficult to read, because it doesn’t seem to contain a full example of an INVITE - OK and then call drop.
Your asterisk is also requiring session timers (with a 15 min expiry) so another thing to validate is that those session refreshes are actually being sent.
Can you get a simpler log showing an incoming call from setup until it drops?
I would look at a SIP trace first and try to better understand how the calls are droppingeg..1. Does the caller suddenly stop sending audio, but no SIP packet to indicate the end of the session. Therefore FreeSWITCH would time out (on receipt of no audio) and terminate.2. Does the caller or FreeSWITCH send a termination (in the form of a BYE) to the other party? If this is the case, look at the logs for something that provoked it.Good luck,BenOn Mon, Sep 5, 2016 at 11:48 AM, Deepika Yadav <deepikay@iiitd.ac.in> wrote:______________________________Hi ,I am using conference call service of Freeswitch over ESL with 21- 22 members over GSM for around 1 hour. One problem that I am facing is frequent call drops of the connected callers.My program has a logic of redialing a caller in case of disconnection, if the caller is not reachable due to some reason the redial happens three times. I am maintaining sufficient balance to keep 22 channels in parallel and also for the duration of calls.One thing that I am observing which I am not sure to be the cause is when I increased the redial trial to five times, the frequency of call drops increased.Is the dialing attempt count should be taken care for the balance maintenance or there is some other cause ?The Freeswitch logs are of type - CALL REJECTED, USER BUSYRegards,Deepika______________________________ _____________
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