<div dir="ltr"><div>It looks good but in the capture file I saw FQNDIP in RR and not FQNDDNS<br><br></div><div>This post by Henning may help you: <a href="https://skalatan.de/en/blog/kamailio-sbc-teams">https://skalatan.de/en/blog/kamailio-sbc-teams</a></div><div><br></div><div>And also you can read that:</div><div><a href="http://sip-router.1086192.n5.nabble.com/Kamailio-as-SBC-for-Microsoft-Teams-td181493.html">http://sip-router.1086192.n5.nabble.com/Kamailio-as-SBC-for-Microsoft-Teams-td181493.html</a><br></div><div><br></div><div>This is a response from my Kamailio to Teams. Maybe it can be useful for you:</div><div><br></div><div>tag: snd<br>pid: 1394<br>process: 1<br>time: 1599126436.582012<br>date: Thu Sep  3 11:47:16 2020<br>proto: tls ipv4<br>srcip: SBC-IP-ADDR<br>srcport: 5061<br>dstip: 52.114.75.24<br>dstport: 5061<br>~~~~~~~~~~~~~~~~~~~~<br>SIP/2.0 200 OK<br>Via: SIP/2.0/TLS 52.114.75.24:5061;branch=z9hG4bK8ac0b4eb<br>Record-Route: <sip:SBC-DNS-DOMAIN:5060;r2=on;lr><br>Record-Route: <sip:SBC-DNS-DOMAIN:5061;transport=tls;r2=on;lr><br>Record-Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr><br>From: Pepelux <sip:+34XXXXXXXXX@sip.pstnhub.microsoft.com:5061;user=phone>;tag=3a6ca98c0a9a46c98ad781c82f389c4d<br>To: <sip:+34YYYYYYYYY@SBC-DNS-DOMAIN:5061;user=phone>;tag=as524dd8d6<br>Call-ID: 99ac64b5ad3455be9fd8c838cbdd4c6c<br>CSeq: 1 INVITE<br>Server: Asterisk PBX 16.2.1~dfsg-1+deb10u1<br>Allow:sINVITE, ACK, CANCEL, OPTIONS, BYE, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE<br>Supported: replaces<br>Contact: <sip:+34YYYYYYYYY@SBC-IP-ADDR:5080><br>Content-Type: application/sdp<br>Content-Length: 532<br><br>v=0<br>o=root 11212956 11212956 IN IP4 SBC-IP-ADDR<br>s=Asterisk PBX 16.2.1~dfsg-1+deb10u1<br>c=IN IP4 SBC-IP-ADDR<br>t=0 0<br>m=audio 30444 RTP/SAVP 8<br>a=maxptime:150<br>a=mid:1<br>a=rtpmap:8 PCMA/8000<br>a=sendrecv<br>a=rtcp:30445<br>a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:13aivX1dzg2Pbon6bNcvyzNenxMbtvCEh65mnL0t<br>a=ptime:20<br>a=ice-ufrag:oysP7oty<br>a=ice-pwd:Vsv8LeF21onN8NFIKhOvpF53zL<br>a=candidate:MLkUNexgYqowLxtY 1 UDP 2130706431 SBC-IP-ADDR 30444 typ host<br>a=candidate:MLkUNexgYqowLxtY 2 UDP 2130706430 SBC-IP-ADDR 30445 typ host<br>~~~~~~~~~~~~~~~~~~~~<br>tag: rcv<br>pid: 1412<br>process: 19<br>time: 1599126436.612972<br>date: Thu Sep  3 11:47:16 2020<br>proto: tls ipv4<br>srcip: 52.114.75.24<br>srcport: 6209<br>dstip: SBC-IP-ADDR<br>dstport: 5061<br>~~~~~~~~~~~~~~~~~~~~<br>ACK sip:+34YYYYYYYYY@SBC-IP-ADDR:5080 SIP/2.0<br>FROM: Pepelux <sip:+34XXXXXXXXX@sip.pstnhub.microsoft.com:5061;user=phone>;tag=3a6ca98c0a9a46c98ad781c82f389c4d<br>TO: <sip:+34YYYYYYYYY@SBC-DNS-DOMAIN:5061>;user=phone;tag=as524dd8d6<br>CSEQ: 1 ACK<br>CALL-ID: 99ac64b5ad3455be9fd8c838cbdd4c6c<br>MAX-FORWARDS: 70<br>VIA: SIP/2.0/TLS 52.114.75.24:5061;branch=z9hG4bK693bb042<br>ROUTE: <sip:SBC-DNS-DOMAIN:5061;transport=tls;r2=on;lr>,<sip:SBC-DNS-DOMAIN:5060;r2=on;lr><br>CONTACT: <sip:api-du-c-euwe.pstnhub.microsoft.com:443;x-i=21167d9c-8cf9-4253-b059-2d987fadae5a;x-c=99ac64b5ad3455be9fd8c838cbdd4c6c/d/8/90df5d0ec92048de868e268fa57ac0f1><br>CONTENT-LENGTH: 0<br>USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.9.1.3 i.EUWE.7<br>ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY<br></div><div><br></div><div><br></div><div>Regards</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 3 Sep 2020 at 12:34, sip user <<a href="mailto:sipuser404@gmail.com">sipuser404@gmail.com</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 dir="ltr"><div>Hi Pepelux,</div><div><br></div><div>I have this one:</div><div><br></div><div>remove_hf("Route");<br>        if (is_method("INVITE|SUBSCRIBE")) {<br>                if($src_ip != "IP ASTERISK"){<br>                        record_route();<br>                        xlog("L_INFO", "***********ROUTE PSTN***********");<br>                        $rU="1005";<br>                } else {<br>                        xlog("L_INFO","LLamada desde $si con puerto $sp");<br>                        record_route_preset("FQNDDNS:5061;transport=tls", "FQNDIP:5060");<br>                        add_rr_param(";r2=on");<br>                        route(DISPATCH);<br>                        route(RELAY);<br>                }<br>        }</div><div><br></div><div>When the call is from Teams (src_ip != "IP ASTERISK"), incoming calls, I send the call to 1005 extension. Is here where I have to make the change? Or where?</div><div><br></div><div>Thanks<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El jue., 3 sept. 2020 a las 12:14, Pepelux (<<a href="mailto:pepeluxx@gmail.com" target="_blank">pepeluxx@gmail.com</a>>) escribió:<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 dir="ltr">Hi<div><br></div><div>Kamailio doesn't receive any ACK from Teams. I think the problem is the '200 Ok' that you send to Teams is not what he expected. Maybe this is wrong:</div><div>Record-Route: <sip:FQNDIP;r2=on;lr><br>Record-Route: <sip:FQNDIP:5061;transport=tls;r2=on;lr><br></div><div><br></div><div>Try to put the registered domain (FQNDDNS) and not de IP address</div><div><br></div><div>Regards</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 3 Sep 2020 at 10:56, sip user <<a href="mailto:sipuser404@gmail.com" target="_blank">sipuser404@gmail.com</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 dir="ltr"><div>Sorry.. Yes, I need to load sipdump.so module..</div><div><br></div><div>I attach the result..</div><div><br></div><div>Thanks<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El mar., 1 sept. 2020 a las 14:03, Pepelux (<<a href="mailto:pepeluxx@gmail.com" target="_blank">pepeluxx@gmail.com</a>>) escribió:<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 dir="ltr">Hi<div><br></div><div>Have you loaded the module? </div><div><br></div><div>loadmodule "sipdump.so"</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 1 Sep 2020 at 13:56, sip user <<a href="mailto:sipuser404@gmail.com" target="_blank">sipuser404@gmail.com</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 dir="ltr"><div>Hi pepelux.. When I set:</div><div><br></div><div>
<span><pre style="background-color:rgb(252,255,252);border:1px solid rgb(153,204,204);color:rgb(0,0,0);padding-left:15pt;overflow:auto;border-radius:2.5px;font-size:15px">modparam("sipdump", "enable", 1)</pre></span> <br></div><div>Error, Kamailio not start, error bad config..</div><div><br></div><div>Thanks<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El mar., 1 sept. 2020 a las 13:45, Pepelux (<<a href="mailto:pepeluxx@gmail.com" target="_blank">pepeluxx@gmail.com</a>>) escribió:<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 dir="ltr"><div>Sorry, I've sent last mail without finishing :)</div><div><br></div><div><a href="https://kamailio.org/docs/modules/5.5.x/modules/sipdump.html" target="_blank">https://kamailio.org/docs/modules/5.5.x/modules/sipdump.html</a><br><br>You only have to load the module and set:<br><pre style="background-color:rgb(252,255,252);border:1px solid rgb(153,204,204);color:rgb(0,0,0);padding-left:15pt;overflow:auto;border-radius:2.5px;font-size:15px">modparam("sipdump", "enable", 1)</pre></div><div><br></div>Also you can enable or disable using RPC commands:<div><pre style="background-color:rgb(252,255,252);border:1px solid rgb(153,204,204);color:rgb(0,0,0);padding-left:15pt;overflow:auto;border-radius:2.5px;font-size:15px">kamcmd sipdump.enable
kamcmd sipdump.enable 1
kamcmd sipdump.enable 0</pre><div><br></div><div>Regards</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 1 Sep 2020 at 13:37, Pepelux <<a href="mailto:pepeluxx@gmail.com" target="_blank">pepeluxx@gmail.com</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 dir="ltr">Hi<div><br></div><div><a href="https://kamailio.org/docs/modules/5.5.x/modules/sipdump.html" target="_blank">https://kamailio.org/docs/modules/5.5.x/modules/sipdump.html</a><br></div><div><br></div><div>You only have to load the module and set:</div><div><br></div><div>modparam("sipdump", "enable", 1)</div><div><br></div><div><pre style="background-color:rgb(252,255,252);border:1px solid rgb(153,204,204);color:rgb(0,0,0);padding-left:15pt;overflow:auto;border-radius:2.5px;font-size:15px">kamcmd sipdump.enable 1
kamcmd sipdump.enable 0</pre></div><div><pre style="background-color:rgb(252,255,252);border:1px solid rgb(153,204,204);color:rgb(0,0,0);padding-left:15pt;overflow:auto;border-radius:2.5px;font-size:15px">modparam("sipdump", "enable", 1)</pre></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 1 Sep 2020 at 13:23, sip user <<a href="mailto:sipuser404@gmail.com" target="_blank">sipuser404@gmail.com</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 dir="ltr"><div>Hi Daniel..</div><div><br></div><div>And how load sipdump?</div><div>I'm using kamailio 5.2.1-1 and I think sipdump module is not available, right?</div><div><br></div><div>Thanks<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El mar., 1 sept. 2020 a las 12:27, Daniel-Constantin Mierla (<<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>>) escribió:<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>
    <p>Hello,</p>
    <p>it seems that the ACK comes in, but my guess is that the R-URI is
      not properly set. From the logs it looks like same value as for To
      header URI, while it should be the address in Contact header of
      200ok for INVITE.</p>
    <p>Load the sipdump module and that will save all the sip traffic in
      a text file, making it easier to see what comes/goes on both
      directions, no matter is over tls or not. If you use kamailio
      devel version (master branch), then sipdump module can also store
      traffic in pcap file (tls traffic saved as udp for simplicity, but
      it is easy to spot from headers or meta data extra header).</p>
    <p>You can send the sipdump file here for investigation, so we can
      see if some headers or r-uri are not correct.</p>
    <p>Cheers,<br>
      Daniel<br>
    </p>
    <div>On 01.09.20 11:15, sip user wrote:<br>
    </div>
    <blockquote type="cite">
      
      <div dir="ltr">
        <div>Hi Daniel, thanks for answered to me...</div>
        <div><br>
        </div>
        <div>With debug=3 I see that:</div>
        <div><br>
        </div>
        <div>kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:610]: parse_msg(): SIP Request:<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:612]: parse_msg():  method:
           <ACK><br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:614]: parse_msg():  uri:    
          <a><sip:+34590@FQND:5061;user=phone;transport=tls></a><br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:616]: parse_msg():  version:
          <SIP/2.0><br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/parse_addr_spec.c:185]: parse_to_param(): add
          param: tag=92e2fd8688a9d17b927d9be2f84faa55-8079<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/parse_addr_spec.c:864]: parse_addr_spec(): end of
          header reached, state=29<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:171]: get_hdr_field(): <TO>
          [94]; uri=[<a>sip:+34590@FQND:5061;user=phone</a>]<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:174]: get_hdr_field(): to body
          [<a><sip:+34590@FQND:5061;user=phone></a>], to tag
          [92e2fd8688a9d17b927d9be2f84faa55-8079]<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:152]: get_hdr_field(): cseq
          <CSEQ>: <1> <ACK><br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/parse_via.c:1303]: parse_via_param(): Found param
          type 232, <branch> = <z9hG4bKf4784e39>; state=16<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/parse_via.c:2639]: parse_via(): end of header
          reached, state=5<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:498]: parse_headers(): Via found,
          flags=2<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:500]: parse_headers(): this is the
          first via<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/receive.c:240]: receive_msg(): --- received sip message
          - request - call-id: [d3649f52dc0057768ec6c18733de8206] -
          cseq: [1 ACK]<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:185]: get_hdr_field():
          content_length=0<br>
          kamailio[1096]:  9(1109) DEBUG: <core>
          [core/parser/msg_parser.c:89]: get_hdr_field(): found end of
          header<br>
          kamailio[1096]:  9(1109) DEBUG: {1 1 ACK
          d3649f52dc0057768ec6c18733de8206} <core>
          [core/receive.c:295]: receive_msg(): preparing to run routing
          scripts...<br>
          kamailio[1096]:  9(1109) DEBUG: {1 1 ACK
          d3649f52dc0057768ec6c18733de8206} sl [sl_funcs.c:397]:
          sl_filter_ACK(): too late to be a local ACK!</div>
        <div><br>
        </div>
        <div>So, I understand that ACK comes from Teams, right? So
          kamailio routing problem?</div>
        <div><br>
        </div>
        <div>Thanks
          <div>
            <div id="gmail-m_6534907034885007247gmail-m_8906909764253046600gmail-m_3627773665162087218gmail-m_7569791116750699942gmail-m_-3676526021935537077gmail-m_-7903172492480682388m_4238966687936567587gmail-m_-8742331068559269799gmail-m_-4085600822694883313gmail-m_9057787174862801108gmail-:nd"><img src="https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif"></div>
          </div>
        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">El mar., 25 ago. 2020 a las
          15:32, Daniel-Constantin Mierla (<<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>>)
          escribió:<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>
            <p>Hello,</p>
            <p>run with debug=3 in kamailio.cfg and see if the ACK comes
              to Kamailio, if yes, then some routing issue in
              kamailio.cfg. If does not come, you will have to check the
              headers to see if MS Teams expects something else there,
              typically is about Record-Route domains...</p>
            <p>Cheers,<br>
              Daniel<br>
            </p>
            <div>On 20.08.20 12:25, sip user wrote:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">
                <div>Hi, I'm connecting Teams with kamailio server. From
                  Kamailio to teams I have no problems, but from teams
                  to Kamailio yes. Drop the call..</div>
                <div><br>
                </div>
                <div>With ngrep I see that:</div>
                <div><br>
                </div>
                <div>
                  <div>INVITE <a>sip:1005@CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940</a>
                    SIP/2.0.<br>
                    Record-Route: <a><sip:FQND_IP;r2=on;lr></a>.<br>
                    Record-Route: <a><sip:FQND_IP:5061;transport=tls;r2=on;lr></a>.<br>
                    FROM: "Javier Gonz..lez
                    Mu..oz"<a><sip:+324@sip.pstnhub.microsoft.com:5061;user=phone></a>;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.<br>
                    TO: <a><sip:+34560@FQND:5061;user=phone></a>.<br>
                    CSEQ: 1 INVITE.<br>
                    CALL-ID: c1364913e582553a9a9c2544c3583b0a.<br>
                    MAX-FORWARDS: 69.<br>
                    Via: SIP/2.0/UDP
92.222.217.64;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.<br>
                    VIA: SIP/2.0/TLS
                    52.114.76.76:5061;branch=z9hG4bKd216a55.<br>
                    RECORD-ROUTE: <a><sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr></a>.<br>
                    CONTACT:
                    <a><sip:api-du-a-euno.pstnhub.microsoft.com:443;x-i=b0b53fc5-76ef-4619-9a68-13e0a4eea92d;x-c=c1364913e582553a9a9c2544c3583b0a/d/8/6c25eb3789a14bf188ce6b05b5e27891></a>.<br>
                    CONTENT-LENGTH: 1091.<br>
                    MIN-SE: 300.<br>
                    SUPPORTED: timer.<br>
                    USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.7.31.1
                    i.EUNO.0.<br>
                    CONTENT-TYPE: application/sdp.<br>
                    ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY.<br>
                    P-ASSERTED-IDENTITY: <a href="tel:+324" target="_blank"><tel:+324></a>,<a><sip:EMAIL></a>.<br>
                    PRIVACY: id.<br>
                    SESSION-EXPIRES: 3600.<br>
                    .<br>
                    v=0.<br>
                    o=- 165103 0 IN IP4 127.0.0.1.<br>
                    s=session.<br>
                    c=IN IP4 52.113.44.8.<br>
                    b=CT:10000000.<br>
                    t=0 0.<br>
                    m=audio 50452 RTP/SAVP 104 9 103 111 18 0 8 97 101
                    13 118.<br>
                    c=IN IP4 52.113.44.8.<br>
                    a=rtcp:50453.<br>
                    a=ice-ufrag:FZTb.<br>
                    a=ice-pwd:yD3P7nr+xNq0VYdv7xpB1F+Y.<br>
                    a=rtcp-mux.<br>
                    a=candidate:1 1 UDP 2130706431 52.113.44.8 50452 typ
                    srflx raddr 10.0.33.240 rport 50<br>
                  </div>
                </div>
                <div><br>
                </div>
                <div>U CLIENT_IP:55766 -> FQND_IP:5060 #2<br>
                  SIP/2.0 180 Ringing.<br>
                  Via: SIP/2.0/UDP
                  FQND_IP;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.<br>
                  Via: SIP/2.0/TLS
                  52.114.76.76:5061;branch=z9hG4bKd216a55.<br>
                  Record-Route: <a><sip:FQND_IP;lr;r2=on></a>.<br>
                  Record-Route: <a><sip:FQND_IP:5061;transport=tls;r2=on;lr></a>.<br>
                  Record-Route: <a><sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr></a>.<br>
                  Contact:
                  <a><sip:1005@CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940></a>.<br>
                  To: <a><sip:+34560@FQND:5061;user=phone></a>;tag=de4e6b45.<br>
                  From: "Javier Gonz..lez
                  Mu..oz"<a><sip:+324@sip.pstnhub.microsoft.com:5061;user=phone></a>;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.<br>
                  Call-ID: c1364913e582553a9a9c2544c3583b0a.<br>
                  CSeq: 1 INVITE.<br>
                  User-Agent: 3CXPhone 6.0.26523.0.<br>
                  Content-Length: 0.<br>
                </div>
                <div><br>
                </div>
                <div>U CLIENT_IP:55766 -> FQND_IP:5060 #3<br>
                  SIP/2.0 200 OK.<br>
                  Via: SIP/2.0/UDP
                  FQND_IP;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.<br>
                  Via: SIP/2.0/TLS
                  52.114.76.76:5061;branch=z9hG4bKd216a55.<br>
                  Record-Route: <a><sip:FQND_IP;lr;r2=on></a>.<br>
                  Record-Route: <a><sip:FQND_IP:5061;transport=tls;r2=on;lr></a>.<br>
                  Record-Route: <a><sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr></a>.<br>
                  Contact:
                  <a><sip:1005@CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940></a>.<br>
                  To: <a><sip:+34560@FQND:5061;user=phone></a>;tag=de4e6b45.<br>
                  From: "Javier Gonz..lez
                  Mu..oz"<a><sip:+324@sip.pstnhub.microsoft.com:5061;user=phone></a>;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.<br>
                  Call-ID: c1364913e582553a9a9c2544c3583b0a.<br>
                  CSeq: 1 INVITE.<br>
                  Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER,
                  SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE.<br>
                  Content-Type: application/sdp.<br>
                  Supported: replaces.<br>
                  User-Agent: 3CXPhone 6.0.26523.0.<br>
                  Content-Length: 1067.<br>
                  .<br>
                  v=0.<br>
                  o=3cxVCE 324945090 117647850 IN IP4 .<br>
                  s=3cxVCE Audio Call.<br>
                  t=0 0.<br>
                  m=audio 0 RTP/SAVP 104 9 103 111 18 0 8 97 101 13 118.<br>
                  c=IN IP4 52.113.44.8.<br>
                  a=rtpmap:104 SILK/16000.<br>
                  a=rtpmap:9 G722/8000.<br>
                  a=rtpmap:103 SILK/8000.<br>
                  a=rtpmap:111 SIREN/16000.<br>
                  a=fmtp:111 bitrate=16000.<br>
                  a=rtpmap:18 G729/8000.<br>
                  a=fmtp:18 annexb=no.<br>
                  a=rtpmap:0 PCMU/8000.<br>
                  a=rtpmap:8 PCMA/8000.<br>
                  a=rtpmap:97 RED/8000.<br>
                  a=rtpmap:101 telephone-event/8000.<br>
                  a=fmtp:101 0-16.<br>
                  a=rtpmap:13 CN/8000.<br>
                  a=rtpmap:118 CN/16000.<br>
                  a=rtcp:50453.<br>
                  a=ice-ufrag:FZTb.<br>
                  a=ice-pwd:yD3P7nr+xNq0VYdv7xpB1F+Y.<br>
                  a=rtcp-mux.<br>
                  a=candidate:1 1 UDP 213<br>
                </div>
                <div><br>
                </div>
                <div>I never received ACK..</div>
                <div><br>
                </div>
                <div>In my configuration:</div>
                <div><br>
                </div>
                <div>Kamailio.cfg:</div>
                <div><br>
                </div>
                <div>#!KAMAILIO<br>
                  #!define WITH_TLS</div>
                <div><br>
                </div>
                <div>event_route[tm:local-request] {<br>
                  <br>
                          if(is_method("OPTIONS") && $ru =~ "<a href="http://pstnhub.microsoft.com" target="_blank">pstnhub.microsoft.com</a>") {<br>
                                 append_hf("Contact: <a><sip:FQND:5061;transport=tls></a>\r\n");<br>
                          }<br>
                          xlog("L_INFO", "Sent out tm request: $mb\n");<br>
                  }</div>
                <div><br>
                </div>
                <div>request_route{</div>
                <div><br>
                </div>
                <div>       remove_hf("Route");<br>
                          if (is_method("INVITE|SUBSCRIBE")) {<br>
                                  xlog("L_INFO","$fU is trying to call
                  to $rU con valores $tu\n");<br>
                                  $rU="1005";<br>
                          }</div>
                <div>}</div>
                <div><br>
                </div>
                <div>What I'm doing wrong?</div>
                <div><br>
                </div>
                <div>I don't understand why not received ACK..</div>
                <div><br>
                </div>
                <div>Could anyone help me?</div>
                <div><br>
                </div>
                <div>Thanks</div>
              </div>
              <br>
              <fieldset></fieldset>
              <pre>_______________________________________________
Kamailio (SER) - Users Mailing List
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
            </blockquote>
            <pre cols="72">-- 
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank">www.linkedin.com/in/miconda</a>
Funding: <a href="https://www.paypal.me/dcmierla" target="_blank">https://www.paypal.me/dcmierla</a></pre>
          </div>
        </blockquote>
      </div>
    </blockquote>
    <pre cols="72">-- 
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank">www.linkedin.com/in/miconda</a>
Funding: <a href="https://www.paypal.me/dcmierla" target="_blank">https://www.paypal.me/dcmierla</a></pre>
  </div>

</blockquote></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>
</blockquote></div></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>