[SR-Users] Transaction Lookup Failing
Daniel-Constantin Mierla
miconda at gmail.com
Mon Apr 10 11:45:20 CEST 2017
Ahh, I read first the initial email and already I responded to it, so
ignore that one -- anyhow, there should be good hints for someone facing
similar situation.
Cheers,
Daniel
On 09.04.17 03:28, Colin Morelli wrote:
> Apologies for the false alarm here - Kamailio was not to blame.
>
> There was a code change in a recent version of PJSIP that resulted in
> the second Via header not including the src port that the request
> originated from. Effectively this meant that the Via header was not an
> exact match for the invite, which caused the transaction to not match.
> Through some configuration changes in PJSIP I was able to work around
> this.
>
> Best,
> Colin
>
> On Sat, Apr 8, 2017 at 7:56 PM, Colin Morelli <colin.morelli at gmail.com
> <mailto:colin.morelli at gmail.com>> wrote:
>
> Hey all,
>
> Trying to debug an issue with canceling an invite. I have two
> different types of clients. On one client, canceling an invite
> works correctly. With the other client, it t_check_trans fails.
>
> Both clients show the same request/responses:
>
> On Client A:
> -> INVITE
> <- 183
> -> PRACK
> <- 200
> -> UPDATE (from successful STUN binding)
> <- 200
> -> CANCEL
> <- 200
>
> On Client B:
> -> INVITE
> <- 183
> -> PRACK
> <- 200
> -> UPDATE (from successful STUN binding)
> <- 200
> -> CANCEL
> <- 481 (this is sent from my kamailio script when t_check_trans fails)
>
> I can't see much that's different between the leading
> requests/responses of each. They seem to be virtually identical
> (with the exception of IP addresses and tag values, of course).
> This makes sense, since they're both based on PJSIP (albeit
> different versions of PJSIP, but not off by much)
>
> Is there anything in particular I should be looking out for that
> might be obvious? I could provide more detailed logs and traces if
> required.
>
> Best,
> Colin
>
>
>
>
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--
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - May 22-24 (USA) - www.asipto.com
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
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