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<font face="monospace">Hi Ali,<br>
<br>
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.<br>
<br>
Regards,<br>
</font>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
<a class="moz-txt-link-freetext" href="https://www.siphub.com">https://www.siphub.com</a></pre>
<div class="moz-cite-prefix">On 08.04.2025 18:03, Ali Dogan wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CWLP265MB406238891EDDEAC041A7896BA1B52@CWLP265MB4062.GBRP265.PROD.OUTLOOK.COM">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<style type="text/css" style="display:none;">P {margin-top:0;margin-bottom:0;}</style>
<span
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Hello
All,<br>
<br>
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. <br>
<br>
Is there anything wrong with my 200Ok I send?<br>
<br>
SIP/2.0 200 OK</span>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
VIA: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd29ef91c</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Record-Route:
<a class="moz-txt-link-rfc2396E" href="sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr"><sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr></a></div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
From: "Ali Dogan"
<<a class="moz-txt-link-freetext" href="sip:+">sip:+</a><CALLING_PARTY>@sip.pstnhub.microsoft.com:5061;user=phone>;tag=90feae90c00c4745b162d0a69fd532bc</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
To:
<<a class="moz-txt-link-freetext" href="sip:+">sip:+</a><Called_Party>@<MY_DOMAIN>:5061;user=phone>;tag=r4FmDXjKF7amm</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Call-ID: 778bfb54c5505df2b350f7c8ac8a6832</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
CSeq: 1 INVITE</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Contact:
<<a class="moz-txt-link-freetext" href="sip:+">sip:+</a><Called_Party>@<MY_DOMAIN>:5061;transport=tls;did=98f.cbe7a852></div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Accept: application/sdp</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO,
UPDATE, REGISTER, REFER, NOTIFY</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Require: timer</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Supported: timer, path, replaces</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Allow-Events: talk, hold, conference, refer</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Session-Expires: 3600;refresher=uac</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Content-Type: application/sdp</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Content-Disposition: session</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Content-Length: 510</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
X-Warning: CLI Should be in E164 Format</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Remote-Party-ID: "Called_PARTY"
<<a class="moz-txt-link-freetext" href="sip:Called_PARTY@">sip:Called_PARTY@</a><MY_DOMAIN>>;party=calling;privacy=off;screen=no</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
<br>
Best Regards,</div>
<div class="elementToProof"
style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Ali</div>
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target="_blank"
id="LPlnk689713"
style="text-decoration:none;" moz-do-not-send="true"><img
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<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Users mailing list
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</pre>
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