Hello Zhan,

possible reasons:

- the ACK is not routed through your proxy (missing record-route for the INVITE)

- the user agent mangles the Route header, therefore the uac module can't does it work correctly (look to the kamailio error logs if you spot something)

Have a look to your SIP e.g. with "ngrep -qt -d any -W byline port 5060" on your proxy.

Cheers,

Henning

Hello,
Thanks for reply! Yes I execute uac_replace_to/from in branch_route in INVITE method... But it doesn't work for ACK method...

пт, 2 авг. 2019 г. в 18:11, Henning Westerholt <hw@skalatan.de>:

Hello Zhan,

have a look to the "uac" module, there are functions to rewrite the From and To header for passing messages. It works together with the rr module.

Cheers,

Henning

Am 02.08.19 um 13:30 schrieb Zhan Bazarov:

Hello!  Please, is it possible to change from/to headers in ACK message to provider? this is exactly our case, please, look it when u get a chance.  http://sip-router.1086192.n5.nabble.com/Wrong-ACK-to-Provider-td130050.html#a130052

_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- 
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services

-- 
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services