<div dir="ltr"><div>Hello,</div><div><br></div><div>We have the following setup and I am having trouble passing the PRACK with correct protocol to the provider.</div><div><br></div><div>UAC (OverTLS) ->(UDP)Kamailio1 (UDP)-> (UDP)Kamailio2 (TCP)-> (TCP)Provider</div><div><br></div><div>UAC : 10.2.1.160 NATED to <a href="http://50.50.50.50:5065/" target="_blank">100.100.100.61</a> (TLS)</div><div>Kamailio1 Sockets: <a href="http://170.170.170.210:5061/" target="_blank">50.50.50.210:5061</a> (TLS),<a href="http://170.170.170.210:5060/" target="_blank">50.50.50.210:5060</a> (UDP)<br></div><div>Kamailio2 Sockets: 50.50.50.182<a href="http://170.170.170.170:5060/" target="_blank">:5060</a> (UDP) 50.50.50.182<a href="http://170.170.170.170:5060/" target="_blank">:5080</a> (TCP)</div><div>Provider: <a href="http://200.200.200.193:5060/" target="_blank">200.200.200.209:5060</a> (TCP)</div><div><br></div><div>We use dispatcher on Kamailio1 & Kamailio2</div><div>The invite goes fine from UCA up to the provider and the provider responses arrive to UAC fine.</div><div>The PRACK from UAC to kamailio1 goes fine to Kamaili02 but, Kamailio2 uses the UDP socket to send to the provider so the PRACK does not arrive to the provider and the call is canceled.</div><div>If the provider is on UDP everything works fine.<br></div><div><br></div><div>Below I have the trace. What should I look for in the config to resolve this wrong protocol/socket on the PRACK?<br></div><div><br></div><div>Kamailio2 Details:</div><div><br></div><div>Sockets</div><div><div>======</div><div>listen=udp:<a href="http://50.50.50.182:5060">50.50.50.182:5060</a><br>listen=tcp: <a href="http://50.50.50.182:5080">50.50.50.182:5080</a><br></div></div><div><br></div><div>On the rr module I have</div><div>==================</div><div>modparam("rr", "enable_double_rr", 1)<br></div><div>modparam("rr", "append_fromtag", 1)<br></div><div>modparam("rr", "enable_full_lr", 1)<br></div><div><br></div><div>CONFIG REQINIT & WITHINDLG PARTS<br></div><div>================================</div><div><div>route[REQINIT] {<br></div></div><div><br>set_reply_no_connect();<br>force_rport();<br>      <br>      if (!mf_process_maxfwd_header("10")) {<br>              xlog("L_ERROR","Too Many Hops Rejecting!");         <br>              sl_send_reply("483","Too Many Hops");<br>             exit;<br> }<br><br>   if(is_method("OPTIONS") && uri==myself && $rU==$null) {<br>             sl_send_reply("200","Keepalive");<br>         exit;<br> }<br><br>   if(!sanity_check("1511", "7")) {<br>          xlog("Malformed SIP message from $si:$sp sanity 1511\n");<br>           exit;<br> }<br>     <br>      if(!sanity_check("17895", "7")) {<br>         xlog("Malformed SIP request from $si:$sp sanity 17895\n");<br>          exit;<br> }<br>}<br></div><div><br></div><div>route[WITHINDLG] {<br></div><div>       if (!has_totag()) return;<br>     <br>if (loose_route()) {<br><br>              if (is_method("BYE")) {<br>                     rtpengine_query();<br>                    rtpengine_delete();<br>}<br>                route(RELAY_OUT);<br>     }<br><br>   if ( is_method("ACK") ) {<br>           #if (t_lookup_request()) {<br>            if (t_check_trans()) {<br>route(RELAY_OUT);<br>                     exit;<br>         } else {<br>                      # ACK without matching transaction ... ignore and discard<br>                     exit;<br>         }<br>     }<br><br>   sl_send_reply("404","Not Allowed");<br>       exit;<br>}<br></div><div><br></div><div>TRACE</div><div>======</div><div>           <a href="http://50.50.50.210:5060">50.50.50.210:5060</a>             <a href="http://50.50.50.182:5060">50.50.50.182:5060</a>             <a href="http://50.50.50.182:32818">50.50.50.182:32818</a>           <a href="http://200.200.200.209:5060">200.200.200.209:5060</a><br>          qqqqqqqqqqwqqqqqqq            qqqqqqqqqqwqqqqqqq            qqqqqqqqqqwqqqqqqqq          qqqqqqqqqqqwqqqqqqqqq<br>a 15:31:11.787490   x        INVITE (SDP)         x                             x                             x<br>a       +0.003099   x qqqqqqqqqqqqqqqqqqqqqqqqqq> x                             x                             x<br>a 15:31:11.790589   x  100 trying -- your call is x                             x                             x<br>a       +0.002220   x <qqqqqqqqqqqqqqqqqqqqqqqqqq x                             x                             x<br>a 15:31:11.792809   x                             x                             x        INVITE (SDP)         x<br>a       +0.020725   x                             x                             x qqqqqqqqqqqqqqqqqqqqqqqqqq> x<br>a 15:31:11.813534   x                             x                             x         100 Trying          x<br>a       +2.628884   x                             x                             x <qqqqqqqqqqqqqqqqqqqqqqqqqq x<br>a 15:31:14.442418   x                             x                             x  183 Session Progress (SDP) x<br>a       +0.001572   x                             x                             x <qqqqqqqqqqqqqqqqqqqqqqqqqq x<br>a 15:31:14.443990   x  183 Session Progress (SDP) x                             x                             x<br>a       +0.299221   x <qqqqqqqqqqqqqqqqqqqqqqqqqq x                             x                             x<br>a 15:31:14.743211   x            PRACK            x                             x                             x<br>a       +0.043114   x qqqqqqqqqqqqqqqqqqqqqqqqqq> x                             x                             x<br>a 15:31:14.786325   x                             x                           PRACK                           x<br>a       +0.448104   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq> x<br>a 15:31:15.234429   x            PRACK            x                             x                             x<br>a       +0.045697   x qqqqqqqqqqqqqqqqqqqqqqqq>>> x                             x                             x<br>a 15:31:15.280126   x                             x                           PRACK                           x<br>a       +0.954153   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x<br>a 15:31:16.234279   x            PRACK            x                             x                             x<br>a       +0.045832   x qqqqqqqqqqqqqqqqqqqqqqqq>>> x                             x                             x<br>a 15:31:16.280111   x                             x                           PRACK                           x<br>a       +1.954170   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x<br>a 15:31:18.234281   x            PRACK            x                             x                             x<br>a       +0.045839   x qqqqqqqqqqqqqqqqqqqqqqqq>>> x                             x                             x<br>a 15:31:18.280120   x                             x                           PRACK                           x<br>a       +1.829676   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x<br>a 15:31:20.109796   x                             x                             x  183 Session Progress (SDP) x<br>a       +0.001460   x                             x                             x <<<qqqqqqqqqqqqqqqqqqqqqqqq x<br>a 15:31:20.111256   x  183 Session Progress (SDP) x                             x                             x<br>a       +2.123075   x <<<qqqqqqqqqqqqqqqqqqqqqqqq x                             x                             x<br>a 15:31:22.234331   x            PRACK            x                             x                             x<br>a       +0.045825   x qqqqqqqqqqqqqqqqqqqqqqqq>>> x                             x                             x<br>a 15:31:22.280156   x                             x                           PRACK                           x<br>a       +2.239640   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x<br>a 15:31:24.519796   x                             x                             x        486 Busy Here        x<br>a       +0.000555   x                             x                             x <qqqqqqqqqqqqqqqqqqqqqqqqqq x<br>a 15:31:24.520351   x                             x                             x             ACK             x<br>a       +0.008965   x                             x                             x qqqqqqqqqqqqqqqqqqqqqqqqqq> x<br>a 15:31:24.529316   x        486 Busy Here        x                             x                             x<br>a       +0.000835   x <qqqqqqqqqqqqqqqqqqqqqqqqqq x                             x                             x<br>a 15:31:24.530151   x             ACK             x                             x                             x<br>a       +1.704184   x qqqqqqqqqqqqqqqqqqqqqqqqqq> x                             x                             x<br>a 15:31:26.234335   x            PRACK            x                             x                             x<br>a       +0.045856   x qqqqqqqqqqqqqqqqqqqqqqqqqq> x                             x                             x<br>a 15:31:26.280191   x                             x                           PRACK                           x<br>a       +3.954734   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x<br>a 15:31:30.234925   x            PRACK            x                             x                             x<br>x       +0.045279   x qqqqqqqqqqqqqqqqqqqqqqqq>>> x                             x                             x<br>x 15:31:30.280204   x                             x                           PRACK                           x<br>x       +3.954116   x                             x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x<br>x 15:31:34.234320   x            PRACK            x                             x                             x    <br></div><div><br></div><div><br></div><div>2021/09/21 15:31:11.787490 <a href="http://50.50.50.210:5060">50.50.50.210:5060</a> -> <a href="http://50.50.50.182:5060">50.50.50.182:5060</a><br>INVITE <a href="http://sip:123456789@sip.mydomain.com:5060">sip:123456789@sip.mydomain.com:5060</a> SIP/2.0<br>Record-Route: <sip:50.50.50.210;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>Max-Forwards: 69<br>From: 987654321 <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>><br>Contact: "MyUserNAme" <sip:mycustomerid@10.2.1.160:58568;transport=TLS;ob;alias=100.100.100.61~48572~3><br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14320 INVITE<br>Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS<br>Supported: replaces, 100rel, timer, norefersub<br>Session-Expires: 1800<br>Min-SE: 90<br>User-Agent: MicroSIP/3.20.5<br>Content-Type: application/sdp<br>Content-Length:   326<br>P-Asserted-Identity: <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>><br><br>v=0<br>o=- 3841227071 3841227071 IN IP4 50.50.50.215<br>s=pjmedia<br>b=AS:84<br>t=0 0<br>a=X-nat:0<br>m=audio 36448 RTP/AVP 8 0 101<br>c=IN IP4 50.50.50.215<br>b=TIAS:64000<br>a=ssrc:2024148033 cname:4f2468fd611910fa<br>a=rtpmap:8 PCMA/8000<br>a=rtpmap:0 PCMU/8000<br>a=rtpmap:101 telephone-event/8000<br>a=fmtp:101 0-16<br>a=sendrecv<br>a=rtcp:36449<br><br><br>2021/09/21 15:31:11.790589 <a href="http://50.50.50.182:5060">50.50.50.182:5060</a> -> <a href="http://50.50.50.210:5060">50.50.50.210:5060</a><br>SIP/2.0 100 trying -- your call is important to us<br>Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3;rport=5060<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>From: 987654321 <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>><br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14320 INVITE<br>Server: myserver<br>Content-Length: 0<br><br><br>2021/09/21 15:31:11.792809 <a href="http://50.50.50.182:32818">50.50.50.182:32818</a> -> <a href="http://200.200.200.209:5060">200.200.200.209:5060</a><br>INVITE <a href="http://sip:123456789@sip.mydomain.com:5060">sip:123456789@sip.mydomain.com:5060</a> SIP/2.0<br>Record-Route: <sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Record-Route: <sip:50.50.50.182;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Record-Route: <sip:50.50.50.210;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Via: SIP/2.0/TCP 50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>Max-Forwards: 68<br>From: 987654321 <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>><br>Contact: "MyUserNAme" <sip:mycustomerid@10.2.1.160:58568;transport=TLS;ob;alias=100.100.100.61~48572~3><br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14320 INVITE<br>Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS<br>Supported: replaces, 100rel, timer, norefersub<br>Session-Expires: 1800<br>Min-SE: 90<br>Content-Type: application/sdp<br>Content-Length:   326<br>P-Asserted-Identity: <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>><br><br>v=0<br>o=- 3841227071 3841227071 IN IP4 50.50.50.183<br>s=pjmedia<br>b=AS:84<br>t=0 0<br>a=X-nat:0<br>m=audio 29308 RTP/AVP 8 0 101<br>c=IN IP4 50.50.50.183<br>b=TIAS:64000<br>a=ssrc:2024148033 cname:4f2468fd611910fa<br>a=rtpmap:8 PCMA/8000<br>a=rtpmap:0 PCMU/8000<br>a=rtpmap:101 telephone-event/8000<br>a=fmtp:101 0-16<br>a=sendrecv<br>a=rtcp:29309<br><br><br>2021/09/21 15:31:11.813534 <a href="http://200.200.200.209:5060">200.200.200.209:5060</a> -> <a href="http://50.50.50.182:32818">50.50.50.182:32818</a><br>SIP/2.0 100 Trying<br>Via: SIP/2.0/TCP 50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>From: 987654321 <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14320 INVITE<br>Content-Length: 0<br><br><br>2021/09/21 15:31:14.442418 <a href="http://200.200.200.209:5060">200.200.200.209:5060</a> -> <a href="http://50.50.50.182:32818">50.50.50.182:32818</a><br>SIP/2.0 183 Session Progress<br>Via: SIP/2.0/TCP 50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>From: 987654321 <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14320 INVITE<br>Record-Route: <sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Record-Route: <sip:50.50.50.182:5060;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Record-Route: <sip:50.50.50.210:5060;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Contact: <<a href="http://sip:123456789@200.200.200.209:5060">sip:123456789@200.200.200.209:5060</a>><br>Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>Require: 100rel<br>RSeq: 1509<br>Content-Length:  241<br>Content-Disposition: session; handling=required<br>Content-Type: application/sdp<br><br>v=0<br>o=Sonus_UAC 12038 7929 IN IP4 200.200.200.209<br>s=SIP Media Capabilities<br>c=IN IP4 200.200.200.212<br>t=0 0<br>m=audio 17366 RTP/AVP 8 101<br>a=rtpmap:8 PCMA/8000<br>a=rtpmap:101 telephone-event/8000<br>a=fmtp:101 0-15<br>a=sendrecv<br>a=maxptime:20<br><br><br>2021/09/21 15:31:14.443990 <a href="http://50.50.50.182:5060">50.50.50.182:5060</a> -> <a href="http://50.50.50.210:5060">50.50.50.210:5060</a><br>SIP/2.0 183 Session Progress<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>From: 987654321 <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14320 INVITE<br>Record-Route: <sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Record-Route: <sip:50.50.50.182:5060;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Record-Route: <sip:50.50.50.210:5060;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes><br>Contact: <<a href="http://sip:123456789@200.200.200.209:5060">sip:123456789@200.200.200.209:5060</a>><br>Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>Require: 100rel<br>RSeq: 1509<br>Content-Length:  253<br>Content-Disposition: session; handling=required<br>Content-Type: application/sdp<br><br>v=0<br>o=Sonus_UAC 12038 7929 IN IP4 50.50.50.183<br>s=SIP Media Capabilities<br>c=IN IP4 50.50.50.183<br>t=0 0<br>m=audio 29320 RTP/AVP 8 101<br>a=maxptime:20<br>a=rtpmap:8 PCMA/8000<br>a=rtpmap:101 telephone-event/8000<br>a=fmtp:101 0-15<br>a=sendrecv<br>a=rtcp:29321<br><br><br>2021/09/21 15:31:14.743211 <a href="http://50.50.50.210:5060">50.50.50.210:5060</a> -> <a href="http://50.50.50.182:5060">50.50.50.182:5060</a><br>PRACK <a href="http://sip:123456789@200.200.200.209:5060">sip:123456789@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 69<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br><br>2021/09/21 15:31:14.786325 <a href="http://50.50.50.182:5060">50.50.50.182:5060</a> -> <a href="http://200.200.200.209:5060">200.200.200.209:5060</a><br>PRACK sip:123456789transport=<a href="http://tcp@200.200.200.209:5060">tcp@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 68<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br><br>2021/09/21 15:31:15.234429 <a href="http://50.50.50.210:5060">50.50.50.210:5060</a> -> <a href="http://50.50.50.182:5060">50.50.50.182:5060</a><br>PRACK <a href="http://sip:123456789@200.200.200.209:5060">sip:123456789@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 69<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br><br>2021/09/21 15:31:15.280126 <a href="http://50.50.50.182:5060">50.50.50.182:5060</a> -> <a href="http://200.200.200.209:5060">200.200.200.209:5060</a><br>PRACK sip:123456789transport=<a href="http://tcp@200.200.200.209:5060">tcp@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 68<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br><br>2021/09/21 15:31:16.234279 <a href="http://50.50.50.210:5060">50.50.50.210:5060</a> -> <a href="http://50.50.50.182:5060">50.50.50.182:5060</a><br>PRACK <a href="http://sip:123456789@200.200.200.209:5060">sip:123456789@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 69<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br><br>2021/09/21 15:31:16.280111 <a href="http://50.50.50.182:5060">50.50.50.182:5060</a> -> <a href="http://200.200.200.209:5060">200.200.200.209:5060</a><br>PRACK sip:123456789transport=<a href="http://tcp@200.200.200.209:5060">tcp@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0<br>Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 68<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br><br>2021/09/21 15:31:18.234281 <a href="http://50.50.50.210:5060">50.50.50.210:5060</a> -> <a href="http://50.50.50.182:5060">50.50.50.182:5060</a><br>PRACK <a href="http://sip:123456789@200.200.200.209:5060">sip:123456789@200.200.200.209:5060</a> SIP/2.0<br>Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>Max-Forwards: 69<br>From: "MyUserNAme" <<a href="mailto:sip%3A987654321@sip.mydomain.com">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>To: <<a href="mailto:sip%3A123456789@sip.mydomain.com">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b<br>CSeq: 14321 PRACK<br>Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1><br>RAck: 1509 14320 INVITE<br>Content-Length:  0<br><br></div><div>Any help will be much appreciated.</div><div><br></div><div>Kind regards,<br></div><div>Angelo</div></div>