Hello,

you are instructing the uac module to use dialog to store the data:

https://kamailio.org/docs/modules/devel/modules/uac.html#uac.p.restore_dlg

In this case you should not see the vsf/vst information in the SIP message.

It might be in some cases that your dialogs are not tracked correctly, and then the uac module might not be able to use this for storage.

Cheers,

Henning

--

Henning Westerholt – https://skalatan.de/blog/

Kamailio services – https://gilawa.com

From: sr-users <sr-users-bounces@lists.kamailio.org> On Behalf Of David Escartín
Sent: Tuesday, June 15, 2021 7:51 AM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
Subject: [SR-Users] vsf/vst question

Hello all!

as we knew vsf/vst were added to the RR header when using uac_replace for From/To headers. BUt we observed that some versions ago (we are using now 5.4) that stop happening with this setup

modparam("uac", "restore_mode", "auto")
modparam("uac", "restore_dlg", 1)

modparam("rr", "enable_full_lr", 0)
modparam("rr", "enable_double_rr", 1)
modparam("rr", "append_fromtag", 1)

and only ftag, did are added as param to RR

However we have seen that when using multihomed kamailio instance and doing uac_replace, vsf/vst are included also with ftag and did params.

Is that behaviour known or expected?

thanks a lot and regards

david

--

David Escartín

NOC engineer

www.sonoc.io

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