[SR-Users] TM Module, avp not present during handling of ack, prack and cancel?

[Henning Westerholt]

Hello,

the CANCEL is an own transaction, refer to RFC 3261 section 9.1.

The ACK for a 200 OK is also an own transaction, only ACKs for non-200 replies belongs to it.

I have not looked it up in RFC 3262, but I think the PRACK is also an own transaction as it get also an independent 200 OK reply. 

Maybe this is the source of your problems.

Cheers,

Henning

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Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com

-----Original Message-----
From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of Benoît Panizzon
Sent: Friday, September 9, 2022 4:12 PM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: [SR-Users] TM Module, avp not present during handling of ack, prack and cancel?

Hi List

If I'm correctly reading the documentation, all avp variables should exist during a transaction until it's final ACK.

ACK, PRACK and CANCEL are part of that transaction. But I seem not to be able to access the content of avp during those messages.

Strangely during MANAGE_REPLY of the 487 following a cancel, the avp are present so that 487 clearly is part of the transaction.

What am I missing?

(Yes, I am still working on mirroring al username (phone number) translations and filtering unwanted header to prevent information leakage, any hints welcome if there is a simpler way to achieve this)

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