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<p><font face="Cantarell">Hello Johan,</font></p>
<p><font face="Cantarell">Thank you for reply.<br>
</font></p>
<p><font face="Cantarell"><br>
</font></p>
<p><font face="Cantarell">The only NAT problem can be on MS Teams
Client, because on Opensips side pretty sure all good.</font></p>
<p><font face="Cantarell"><br>
</font></p>
<p><font face="Cantarell">volga629</font><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 4/19/20 3:04 AM, Johan De Clercq
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:AM0PR06MB6226F101321A718017AC4FC8A7D70@AM0PR06MB6226.eurprd06.prod.outlook.com">
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<div>Can’t it be a NAT problem? The IP address where the bye
is coming from doesn’t seem a pstnhub to me.</div>
<div><br>
</div>
<div class="ms-outlook-ios-signature"
id="ms-outlook-mobile-signature"><a
href="https://aka.ms/o0ukef" moz-do-not-send="true">Outlook
voor iOS</a> downloaden</div>
</div>
</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>Van:</b> Users
<a class="moz-txt-link-rfc2396E" href="mailto:users-bounces@lists.opensips.org"><users-bounces@lists.opensips.org></a> namens volga629 via
Users <a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a><br>
<b>Verzonden:</b> Saturday, April 18, 2020 11:01:19 PM<br>
<b>Aan:</b> OpenSIPS users mailling list
<a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a>; Alexey Vasilyev
<a class="moz-txt-link-rfc2396E" href="mailto:alexei.vasilyev@gmail.com"><alexei.vasilyev@gmail.com></a><br>
<b>Onderwerp:</b> Re: [OpenSIPS-Users] ms teams ACK</font>
<div> </div>
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<div>
<p><font face="Cantarell">Hello Alexey,</font></p>
<p><font face="Cantarell">Thank you on reply,</font></p>
<p><font face="Cantarell">I undone all changes regard headers
changes and MS Teams send BYE directly to asterisk.<br>
</font></p>
<p><font face="Cantarell">No Route header present.</font></p>
<p><font face="Cantarell">But INVITE ACK 183 180 all travel
with proper routing information.<br>
</font></p>
<p><font face="Cantarell"><br>
</font></p>
<p><font face="Cantarell">2020/04/18 17:54:28.599711
190.109.70.77:5060 -> 190.109.68.250:5060<br>
BYE <a class="x_moz-txt-link-freetext"
href="sip:11988582770@190.109.68.250:5060"
moz-do-not-send="true">
sip:11988582770@190.109.68.250:5060</a> SIP/2.0<br>
FROM: <a class="x_moz-txt-link-rfc2396E"
href="sip:551120999838@190.109.70.77"
moz-do-not-send="true"><sip:551120999838@190.109.70.77></a>;tag=4d7fb0763c224e39a13a03c669c4b387<br>
TO: <a class="x_moz-txt-link-rfc2396E"
href="sip:11988582770@190.109.70.77"
moz-do-not-send="true"><sip:11988582770@190.109.70.77></a>;tag=as41e97ff5<br>
CSEQ: 3 BYE<br>
CALL-ID: <a class="x_moz-txt-link-abbreviated"
href="mailto:2e6c1a8d2383a4752403e94512ced077@190.109.70.77"
moz-do-not-send="true">
2e6c1a8d2383a4752403e94512ced077@190.109.70.77</a><br>
MAX-FORWARDS: 69<br>
Via: SIP/2.0/UDP
190.109.70.77:5060;branch=z9hG4bK050e.e400e373.0;i=66c9c603<br>
VIA: SIP/2.0/TLS
52.114.14.70:5061;rport=8208;received=52.114.14.70;branch=z9hG4bK9594cd7<br>
REASON:
Q.850;cause=18;text="fcb37a2a-4bc4-49b6-a5e3-aabddc8f7a22;Call
Controller timed out while waiting for acknowledgement."<br>
CONTACT: <a class="x_moz-txt-link-rfc2396E"
href="sip:52.114.14.70:8208;nat=yes;x-i=fcb37a2a-4bc4-49b6-a5e3-aabddc8f7a22;x-c=b5841f98785c5819bb99e57cd0fa7d86/s/1/9b6ba2f8eefa4a67bed29609fd1884ec"
moz-do-not-send="true">
<sip:52.114.14.70:8208;nat=yes;x-i=fcb37a2a-4bc4-49b6-a5e3-aabddc8f7a22;x-c=b5841f98785c5819bb99e57cd0fa7d86/s/1/9b6ba2f8eefa4a67bed29609fd1884ec></a><br>
CONTENT-LENGTH: 0<br>
USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.4.13.7
i.ASSE.3<br>
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY<br>
</font></p>
<p><font face="Cantarell"><br>
</font></p>
<p><font face="Cantarell">volga629<br>
</font></p>
<p><br>
</p>
<div class="x_moz-cite-prefix">On 4/18/20 5:13 PM, Alexey
Vasilyev wrote:<br>
</div>
<blockquote type="cite">
<pre class="x_moz-quote-pre">Hi volga629,
There were nothing special for ACK. You don't need to change
To/From/Contact. All the necessary steps were in the article
<a class="x_moz-txt-link-freetext" href="https://blog.opensips.org/2019/09/16/opensips-as-ms-teams-sbc/" moz-do-not-send="true">https://blog.opensips.org/2019/09/16/opensips-as-ms-teams-sbc/</a> and for most
people it still works.
So I'm not sure, that MS changed anything, because all the hardware SBCs
should change behaviour, so they need new firmware. SBC vendors should
inform customers to update etc. So this is not so simple process. And it
definitely make no sense for anybody.
And in the test lab for the article I've used absolutely the same
architecture with asterisk, the only difference was RTPEngine to transcode
SRTP-RTP.
And within test lab I've tested not only calls, but transfers worked fine
too.
-----
---
Alexey Vasilyev
--
Sent from: <a class="x_moz-txt-link-freetext" href="http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html" moz-do-not-send="true">http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html</a>
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Users mailing list
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</pre>
</blockquote>
</div>
</blockquote>
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