[SR-Users] Request Timeouts
swwilkins at mitre.org
Wed Feb 7 02:31:43 CET 2018
Hi Alex Thank you!, there is so much to learn.
As you suggested, I looked at the CSeq and the Timeout is from an INFO message going from Kamailio to Asterisk. Asterisk immediately sends "BYE" back to Kamailio and then the call drops. This is why I was wondering if I needed to do anything for INFO messages. "I think" this is why some calls are dropping. Does this make any since?
Thank you for your help!
From: sr-users [mailto:sr-users-bounces at lists.kamailio.org] On Behalf Of Alex Balashov
Sent: Tuesday, February 6, 2018 7:54 PM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: Re: [SR-Users] Request Timeouts
The CSeq line of the 408 Request Timeout message will tell you which request method type it corresponds to, so you'll know what request it's for.
INFO requests, like all call-related requests (except for hop-by-hop ACKs acknowledging a negative reply) go between the endpoints, and Kamailio simply passes them through. It should not be responding with anything to a request like that.
On Wed, Feb 07, 2018 at 12:49:45AM +0000, Wilkins, Steve wrote:
> This is actually a follow up to my last question about some providers calls being dropped. I noticed that when calls are dropped, I see a Kamailio log message "Request Timeout" about 5-10 seconds before the call is dropped. I am wondering what could cause this while a call is in progress.
> Does Kamailio need to respond to Asterisk with a '200 OK' for an INFO request sent to Kamailio from Asterisk? I am not sure what else could cause this call dropping behavior.
> Note: It does not appear to be caused from a missing 'ACK'.
> Thank you,
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
Alex Balashov | Principal | Evariste Systems LLC
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