But the weird part is that one call may stay up until I hang up(10 -15 minutes), the other
for 30 seconds, that's with using the same UA and no changes to any scripts.
-----Original Message-----
From: sr-users [mailto:sr-users-bounces@lists.kamailio.org] On Behalf Of Alex Balashov
Sent: Sunday, February 11, 2018 8:27 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Subject: Re: [SR-Users] Very inconsistent calls
I have found that calls are very inconsistent. I use
Kamailio 5,
Asterisk 14. When certain Providers like (Sorenson, ZVRS) make calls
into a WebRTC client (tryit-jssip), sometime the calls stay up until I
close them (10-15 minutes), others times those calls drop in 30
seconds. This is extremely confusing...does anyone else experience
this type of behavior?
It is hard to speculate without a capture, and indeed there are lots of moving parts with
WebRTC. However, the typical reason why an established call would drop after ~30 sec (32,
to be precise) is that the end-to-end ACK from the caller, which completes the required
"three-way handshake"
for call establishment, does not reach the callee. This is because it's not
constructed correctly by the calling UA, not routed correctly by intermediate entities, or
isn't sent at all by the calling UA.
--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web:
http://www.evaristesys.com/,
http://www.csrpswitch.com/
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