Hi Ali,
The ACK is routed to the Contact address in 200 OK. So that Contact you
set does not point back to your server - and probably MST is sending the
ACK to some other destination.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
https://www.siphub.com
On 08.04.2025 18:03, Ali Dogan wrote:
Hello All,
I'm trying to integrate OpenSIP with MS Teams. I'm using opensips with
Topology Hiding module. Therefore, I'm adding FQDN to Contact and but
MS Teams still not sending ACK to my 200 OK Shown in below.
Is there anything wrong with my 200Ok I send?
SIP/2.0 200 OK
VIA: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd29ef91c
Record-Route:
<sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>
From: "Ali Dogan"
<sip:+<CALLING_PARTY>@sip.pstnhub.microsoft.com:5061;user=phone>;tag=90feae90c00c4745b162d0a69fd532bc
To: <sip:+<Called_Party>@<MY_DOMAIN>:5061;user=phone>;tag=r4FmDXjKF7amm
Call-ID: 778bfb54c5505df2b350f7c8ac8a6832
CSeq: 1 INVITE
Contact:
<sip:+<Called_Party>@<MY_DOMAIN>:5061;transport=tls;did=98f.cbe7a852>
Accept: application/sdp
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
REGISTER, REFER, NOTIFY
Require: timer
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Session-Expires: 3600;refresher=uac
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 510
X-Warning: CLI Should be in E164 Format
Remote-Party-ID: "Called_PARTY"
<sip:Called_PARTY@<MY_DOMAIN>>;party=calling;privacy=off;screen=no
Best Regards,
Ali
Ali Dogan
plan.com <http://www.plan.com/>
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