<div dir="ltr"><div>Miha,</div><div><br></div><div>First, do you need to use "<a href="http://mtsbc.test.com:5060">mtsbc.test.com:5060</a>" in the first record_route_preset() param? Can you use the IP address of your proxy instead? FQDNs are legal of course, but outside of MS Teams' implementation, they're rarely required. It's just another thing to go wrong. Especially while testing.</div><div><br></div><div>The ACK to the 200 OK is a sequential (in-dialog) request. It's not part of the original INVITE transaction. Your script will have a section like</div><div><br></div><div><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> if (has_totag()) {</span></span></div><div><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> </span><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)">if (loose_route()) {</span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> </span><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)">t_relay();</span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> }</span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> }</span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><br></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif">for sequential requests through a loose-routing proxy. This is very oversimplified and yours will have more. In this section, however, is where you'll process the ACK because it has a to-tag (line 293) and a route header (line 298) so the conditions match.</span></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif"><br></span></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif">Use xlogs or the debug tool of your choice to diagnose what's happening in this section with the ACK. In my scripts, I use global flag 0 to indicate when I want logging. So, I might have something like this:</span></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif"><br></span></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> if (has_totag()) {
</span><br> if (is_gflag(0)) xlog("L_NOTICE", "<span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"> ...in-dialog $rm request\n")</span><span style="color:rgb(84,255,255);background-color:rgb(255,255,255)">;</span><br></span></span></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"></span> # ...do all the things...maybe more logging like the line above...<br></span></span></span></span></span></span></div><div><br></div><div><br></div><div>- Jeff</div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif"></span></span></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif"></span><br></span></span></span></span></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jun 1, 2021 at 4:57 AM Miha via Users <<a href="mailto:users@lists.opensips.org" target="_blank">users@lists.opensips.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<font face="Calibri Light">Hello<br>
<br>
<br>
I have an issue and I am unable to find out what is wrong.
Incoming calls are working but when doing outbound call after
200OK, which is send to Teams I get back ACK and after that Teams
do again initial. I guess this is not ok.<br>
<br>
I am doing this for outband calls:<br>
<br>
</font><br>
<div style="color:rgb(212,212,212);background-color:rgb(30,30,30);font-family:Consolas,"Courier New",monospace;font-weight:normal;font-size:14px;line-height:19px;white-space:pre-wrap"><div><span style="color:rgb(212,212,212)">xlog(</span><span style="color:rgb(206,145,120)">"L_INFO"</span><span style="color:rgb(212,212,212)">, </span><span style="color:rgb(206,145,120)">"rtp rtps record route"</span><span style="color:rgb(212,212,212)">)</span><span style="color:rgb(106,153,85)">;</span></div><div><span style="color:rgb(212,212,212)"> record_route_preset(</span><span style="color:rgb(206,145,120)">"<a href="http://mtsbc.test.com:5060" target="_blank">mtsbc.test.com:5060</a>"</span><span style="color:rgb(212,212,212)">,</span><span style="color:rgb(206,145,120)">"</span><span style="color:rgb(206,145,120)"><span style="color:rgb(206,145,120)"><a href="http://mtsbc.test.com" target="_blank">mtsbc.test.com</a></span>:5061;transport=tls"</span><span style="color:rgb(212,212,212)">)</span><span style="color:rgb(106,153,85)">;</span></div><div><span style="color:rgb(212,212,212)"> add_rr_param(</span><span style="color:rgb(206,145,120)">";r2=on"</span><span style="color:rgb(212,212,212)">)</span><span style="color:rgb(106,153,85)">;</span></div></div>
<font face="Calibri Light"><br>
I am pasting here trace. Opensips is in the middle.<br>
<br>
Thank you for help!<br>
<br>
<a href="https://pastebin.com/qM0dMiCc" target="_blank">https://pastebin.com/qM0dMiCc</a><br>
</font>
</div>
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</blockquote></div>