<h3>Description</h3>
<p>I have an instance of Kamailio running with topos module enabled as described bellow:</p>
<p>(Core network) <---> (<strong>Kamailio</strong> running on 192.168.70.106:5061) <--> (Provider network)</p>
<p>Here is the scenario:</p>
<ol>
<li>An INVITE comming from Core network through Kamailio to the Provider network and the call is established correctly (with 200 OK and ACK correctly routed).</li>
<li>The call is put on hold by the callee. A RE-INVITE comming from Provider network through Kamailio to the Core network. This REINVITE is routed correctly.</li>
<li>The Core network sent 200 OK reply to the RE-INVITE. The 200 OK message reached the Kamailio and was dropped there. (It SHOULD go back to the Provider network).</li>
</ol>
<h4>Log Messages</h4>
<p>When Kamailio received this 200 OK, I see this log message:</p>
<pre><code>ERROR: topos [tps_storage.c:1299]: tps_db_update_dialog(): no valid dlg uuid (0: - 0:)
</code></pre>
<h4>SIP Traffic</h4>
<p><strong>Here is the REINVITE message arriving from our provider:</strong></p>
<pre><code>INVITE sip:btpsh-5acddf40-d74-5@192.168.70.106:5061 SIP/2.0
Call-ID: 79acbb714c21354c
Contact: sip:80.10.231.10:5060;transport=udp
Content-Type: application/sdp
CSeq: 1 INVITE
From: sip:xxxx@xxxx;user=phone;tag=SDt2dkc98-04020267673121
Max-Forwards: 63
Record-Route: sip:192.168.70.126:5060;user=i0o0S000000ad;lr;Cpkt=XWJOA;C=xxxx,sip:192.168.70.126:5070;user=00000214;lr;Cpkt=YJJEE;C=xxx
To: sip:+yyyy@xxxx;user=phone;tag=1713351228
Via: SIP/2.0/UDP 192.168.70.126:5060;branch=z9hG4bK-XWJO-000227ab-7eda6242,SIP/2.0/UDP 192.168.70.126:5070;received=192.168.70.126;rport=5070;branch=z9hG4bK-YJJE-000a057c-0bf8ef7c,SIP/2.0/UDP 193.200.4.20:5060;emission,SIP/2.0/UDP 80.10.231.10:5060;received=80.10.231.10;rport=5060;branch=z9hG4bK5g8vgn00cobc0atd6hf0sb0000g00.1
Accept: application/sdp
Allow: INVITE,ACK,CANCEL,BYE,OPTIONS,PRACK
Content-Length: 236
</code></pre>
<p><strong>Here is the REINVITE comming out of Kamailio into our core side:</strong></p>
<pre><code>INVITE sip:192.168.40.106:5090;did=d03.e3be0354 SIP/2.0
Via: SIP/2.0/UDP 192.168.70.106:5061;branch=z9hG4bK443f.2ec12863719a69f1e3851178d9cb21d0.0
Call-ID: 79acbb714c21354c
Content-Type: application/sdp
CSeq: 1 INVITE
From: sip:+xxx@xxxx;tag=SDt2dkc98-04020267673121
Max-Forwards: 62
To: sip:xxx@xxxx;tag=1713351228
Accept: application/sdp
Allow: INVITE,ACK,CANCEL,BYE,OPTIONS,PRACK
Content-Length: 236
Route: xxx
Contact: sip:atpsh-5acddf40-d75-5@192.168.70.106:5061
</code></pre>
<p><strong>Here is the 200 OK for this REINVITE message comming from the Core network</strong> (This message arrived to Kamailio but is never sent to our provider).</p>
<pre><code>SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.70.106:5061;branch=z9hG4bK443f.2ec12863719a69f1e3851178d9cb21d0.0
From: sip:+xxx@xxxx;tag=SDt2dkc98-04020267673121
To: sip:xxx@xxxx;tag=1713351228
Call-ID: 79acbb714c21354c
CSeq: 1 INVITE
Contact: sip:192.168.40.106:5090;did=d03.e3be0354
Allow: ACK, INVITE, BYE, CANCEL, REGISTER, REFER, OPTIONS, INFO
Content-Type: application/sdp
Content-Length: 197
</code></pre>
<h3>Additional Information</h3>
<ul>
<li><strong>Kamailio Version</strong> - output of <code>kamailio -v</code></li>
</ul>
<p>kamailio 5.1.2</p>
<ul>
<li><strong>Operating System</strong>:</li>
</ul>
<p>Centos Linux 3.10.0-514.26.1.el7.x86_64</p>
<ul>
<li><strong>Database</strong>:</li>
</ul>
<p>PostgreSQL 9.4</p>
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