Hello,

Use transformation with the header PV:

• https://www.kamailio.org/wikidocs/cookbooks/6.0.x/transformations/#uriparams
• For more complex headers https://www.kamailio.org/wikidocs/cookbooks/6.0.x/transformations/#tobodyparams

Cheers,

Henning

From: Valentin Christoph via sr-users <sr-users@lists.kamailio.org>
Sent: Dienstag, 29. Juli 2025 11:40
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
Cc: Onic Roman <Roman.Onic@kontron.com>; Wöber Kilian <Kilian.Woeber@kontron.com>; Nardin Luca <luca.nardin@kontron.com>; Valentin Christoph <Christoph.Valentin@kontron.com>
Subject: [SR-Users] reading out "response" and "integrity-protected" from "Authorization" header field

Hi all,

Again an IMS question.

The 3GPP TS 24.229 specifies some additional parameters for the “Authorization” header field in REGISTER requests, e.g. the “integrity-protected” parameter and the “response” parameter.

Now the question: is it the only way to read out these parameters from the “Authorization” header field, by implementing new pseudo variables, e.g. $aip and $are, or is there an easy way using $hdr() from the configuration?

I want to avoid sophisticated regular expressions.

Thanks,

Christoph