Hello!
This is probably caused by SIP ALG in the NAT router. Compare what the client sends to
what you receive on the server.
With kind regards
Pan B. Christensen
Developer
Phonect AS
-----Original Message-----
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Social
Boh
Sent: onsdag 9. mai 2018 18:32
To: sr-users(a)lists.kamailio.org
Subject: [SR-Users] Understanding port changing
Hello list,
I'm looking for to understand a problem have with Kamailio.
The configuration is:
user (behind NAT) -> Kamilio (Public IP) -> user (behind NAT)
When I make a call from user A to user B (both registered) , User B receive
the INVITE correctly but in the ringing SIP message change the port present
on the Contact Header and same think on 200OK so when Kamailio try to
send it ACK SIP message to this port fail because the Softphone listen on the
port where has received the INVITE from Kamailio.
This happens with 3 different Softphone: BRIA, Xlite, Linphone on the same
computer.
Thank you
Regards
--
---
I'm SoCIaL, MayBe
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