<html><head><style type='text/css'>p { margin: 0; }</style><style type='text/css'>body { font-family: 'Times New Roman'; font-size: 12pt; color: #000000}</style></head><body>Hi Bogdan,<br><br>I meant the Codec number in the Payload Type(PT) of the SDP header for call initiation.<br><br>Thanks,<br>Arjun<br><br>----- Original Message -----<br>From: "Bogdan-Andrei Iancu" &lt;bogdan@opensips.org&gt;<br>To: "Arjun Shankar K S" &lt;arjun_ks@kalycito.com&gt;<br>Cc: "OpenSIPS users mailling list" &lt;users@lists.opensips.org&gt;<br>Sent: Monday, July 16, 2012 2:25:54 PM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi<br>Subject: Re: [OpenSIPS-Users] 500 Server Internal Error<br><br>

  
    
  <title></title><link href="/zimbra/css/msgview.css?v=080321160509" rel="stylesheet">
    <tt>RTPproxy is not codec aware (codecs are totally transparent for
      rtpproxy). And even if it is a code problem, a UAC SHOULD NOT
      generate ANY reply for an ACK.<br>
      <br>
      Regards,<br>
    </tt>
    <pre class="moz-signature">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
    <br>
    On 07/16/2012 11:52 AM, Arjun Shankar K S wrote:
    <blockquote cite="mid:29213134.12791342428733392.JavaMail.root@mail.vlinksys.com">
      <style>p { margin: 0; }</style>
      <style>body { font-family: 'Times New Roman'; font-size: 12pt; color: #000000}</style>Hi
      Bogdan,<br>
      <br>
      Thanks Bogdan. My UAC supports only AMR codec and as I understand
      that RTP Proxy does not support it. Can this be the issue?<br>
      <br>
      Thanks,<br>
      Arjun<br>
      <br>
      <br>
      ----- Original Message -----<br>
      From: "Bogdan-Andrei Iancu" <a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org" target="_blank">&lt;bogdan@opensips.org&gt;</a><br>
      To: "Arjun Shankar K S" <a class="moz-txt-link-rfc2396E" href="mailto:arjun_ks@kalycito.com" target="_blank">&lt;arjun_ks@kalycito.com&gt;</a><br>
      Cc: "OpenSIPS users mailling list"
      <a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org" target="_blank">&lt;users@lists.opensips.org&gt;</a><br>
      Sent: Monday, July 16, 2012 2:07:23 PM GMT +05:30 Chennai,
      Kolkata, Mumbai, New Delhi<br>
      Subject: Re: [OpenSIPS-Users] 500 Server Internal Error<br>
      <br>
      
      
      <tt>Hi ARjun,<br>
        <br>
        Well, the 500 reply is generated by one of your UACs (why? check
        with the UAC) - what is really brain dead is that the reply is
        for an ACK requests (see the cseq hdr in reply) - and according
        to SIP RFC3261, ACK requests do not have replies at all!<br>
        <br>
        Regards,<br>
      </tt>
      <pre class="moz-signature">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
      <br>
      On 07/16/2012 09:41 AM, Arjun Shankar K S wrote:
      <blockquote cite="mid:12522560.10721342420891437.JavaMail.root@mail.vlinksys.com">
        <style>p { margin: 0; }</style>
        <style>body { font-family: 'Times New Roman'; font-size: 12pt; color: #000000}</style>Hi

        Bogdan, <br>
        <br>
        The opensips server is running in a 220.225.134.9 public IP. All
        UACs are in the 220.225.134.x series. The SIP Trace is as given
        below, <br>
        <br>
        <br>
        |Time | 220.225.134.9 | <br>
        | | | 10.100.4.64 | <br>
        |11.678 | INVITE SDP (AMRRTPType-114) |SIP From: &lt;<a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:1016@</a> 220.225.134.9
        To:&lt;<a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:1012@</a> 220.225.134.9
        <br>
        | |(5060) ------------------&gt; (5060) | <br>
        |12.182 | INVITE SDP (AMRRTPType-114) |SIP From: &lt;<a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:1016@</a> 220.225.134.9
        To:&lt;<a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:1012@</a> 220.225.134.9
        <br>
        | |(5060) ------------------&gt; (5060) | <br>
        |12.899 | 100 Trying| |SIP Status <br>
        | |(5060) &lt;------------------ (5060) | <br>
        |13.209 | 180 Ringing |SIP Status <br>
        | |(5060) &lt;------------------ (5060) | <br>
        |21.007 | 200 OK SDP (AMRRTPType-114) |SIP Status <br>
        | |(5060) &lt;------------------ (5060) | <br>
        |21.126 | ACK | |SIP Request <br>
        | |(5060) ------------------&gt; (5060) | <br>
        |21.579 | 200 OK SDP (AMRRTPType-114) |SIP Status <br>
        | |(5060) &lt;------------------ (5060) | <br>
        |22.186 | 500 Server Internal Error |SIP Status <br>
        | |(5060) &lt;------------------ (5060) | <br>
        <br>
        <br>
        And the ngrep capture was as I had put in my previous mail. <br>
        <br>
        Thanks, <br>
        Arjun <br>
        <br>
        ----- Original Message ----- <br>
        From: "Bogdan-Andrei Iancu" <a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org" target="_blank">&lt;bogdan@opensips.org&gt;</a>
        <br>
        To: "Arjun Shankar K S" <a class="moz-txt-link-rfc2396E" href="mailto:arjun_ks@kalycito.com" target="_blank">&lt;arjun_ks@kalycito.com&gt;</a>
        <br>
        Cc: "OpenSIPS users mailling list" <a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org" target="_blank">&lt;users@lists.opensips.org&gt;</a>
        <br>
        Sent: Friday, July 13, 2012 6:40:34 PM GMT +05:30 Chennai,
        Kolkata, Mumbai, New Delhi <br>
        Subject: Re: [OpenSIPS-Users] 500 Server Internal Error <br>
        <br>
        Arjun, <br>
        <br>
        That is really foobar.....What device is 220.225.134.2:13120 and
        why is it generating a reply for an ACK request !?!?! ACK HAVE
        NOT replies at all :) <br>
        <br>
        Regards, <br>
        Bogdan-Andrei Iancu<br>
        OpenSIPS Founder and Developer <a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a>
        <br>
        On 07/13/2012 01:52 PM, Arjun Shankar K S wrote: <br>
        <br>
        Hi Bogdan, <br>
        <br>
        Please find below the ngrep capture at the SIP server side, <br>
        <br>
        ##################################################################################################################################################################################################################################################################################

        <br>
        U(17) 220.225.134.2:13120 -&gt; 220.225.134.9:5060 <br>
        SIP/2.0 200 OK..Record-Route: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9;lr=on&gt;</a> ..Call-Id:
        <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 INVITE..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a> ;tag <br>
        =4IHoLZ2ha..Via: SIP/2.0/UDP
        220.225.134.9:5060;branch=z9hG4bKec6a.856da06.0,SIP/2.0/UDP
        220.225.134.9:5060;received=203.199.234.3;rport=41792;branch=z9hG4bKd8feb

        <br>
        fe85d601ca1b48d8bd8e6a10ba6..From: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ;tag=LXMkFpqUA..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9:5060&gt;</a>
        ..Content-Type: application/sdp..Content-Length: 197.. <br>
        ..v=0..o=blackberry 1342175741968 1342175741968 IN IP4
        220.225.134.2..s=Phone call..c=IN IP4 220.225.134.2..t=0 0..t=0
        0..m=audio 7078 RTP/AVP 114..a=rtpmap:114 A <br>
        MR/8000/1..a=fmtp:114 octet-align=1.. <br>
        # <br>
        U(17) 220.225.134.9:5060 -&gt; 203.199.234.3:41792 <br>
        SIP/2.0 200 OK..Record-Route: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9;lr=on&gt;</a> ..Call-Id:
        <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 INVITE..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a> ;tag <br>
        =4IHoLZ2ha..Via: SIP/2.0/UDP
        220.225.134.9:5060;received=203.199.234.3;rport=41792;branch=z9hG4bKd8febfe85d601ca1b48d8bd8e6a10ba6..From:

        <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ; <br>
        tag=LXMkFpqUA..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.2:13120;nat=yes&gt;</a>
        ..Content-Type: application/sdp..Content-Length: 216..P-hint:
        onreply_route|force_rtp_proxy ..P-hint: Onr <br>
        eply-route - fixcontact ....v=0..o=blackberry 1342175741968
        1342175741968 IN IP4 220.225.134.2..s=Phone call..c=IN IP4
        220.225.134.9..t=0 0..t=0 0..m=audio 38476 <br>
        RTP/AVP 114..a=rtpmap:114 AMR/8000/1..a=fmtp:114
        octet-align=1..a=nortpproxy:yes.. <br>
        ############################# <br>
        U(17) 203.199.234.3:41792 -&gt; 220.225.134.9:5060 <br>
        ACK <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:220.225.134.2:13120;nat=yes</a>
        SIP/2.0..Call-Id: <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 ACK..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a>
        ;tag=4IHoLZ2ha..Via <br>
        : SIP/2.0/UDP
        220.225.134.9:5060;rport;branch=z9hG4bK202da30a90a53ad5d81d9256e09b6db6..Max-Forwards:

        70..From: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ;tag=LXMkFpqUA..Contact: &lt;s <br>
        <a class="moz-txt-link-abbreviated" href="mailto:ip:1012@203.199.234.3:41792" target="_blank">ip:1012@203.199.234.3:41792</a>
        &gt;..Route: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9;lr=on&gt;</a>
        ..Content-Length: 0.... <br>
        # <br>
        U(17) 220.225.134.9:5060 -&gt; 220.225.134.2:13120 <br>
        ACK <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:220.225.134.2:13120</a>
        SIP/2.0..Call-Id: <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 ACK..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a>
        ;tag=4IHoLZ2ha..Via: SIP/2. <br>
        0/UDP 220.225.134.9;branch=z9hG4bKec6a.856da06.2..Via:
        SIP/2.0/UDP
        220.225.134.9:5060;received=203.199.234.3;rport=41792;branch=z9hG4bK202da30a90a53ad5d81d9256e09

        <br>
        b6db6..Max-Forwards: 69..From: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ;tag=LXMkFpqUA..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@203.199.234.3:41792;nat=yes&gt;</a>
        ..Content-Length: 0.... <br>
        ################ <br>
        U(17) 220.225.134.2:13120 -&gt; 220.225.134.9:5060 <br>
        SIP/2.0 200 OK..Record-Route: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9;lr=on&gt;</a> ..Call-Id:
        <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 INVITE..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a> ;tag <br>
        =4IHoLZ2ha..Via: SIP/2.0/UDP
        220.225.134.9:5060;branch=z9hG4bKec6a.856da06.0,SIP/2.0/UDP
        220.225.134.9:5060;received=203.199.234.3;rport=41792;branch=z9hG4bKd8feb

        <br>
        fe85d601ca1b48d8bd8e6a10ba6..From: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ;tag=LXMkFpqUA..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9:5060&gt;</a>
        ..Content-Type: application/sdp..Content-Length: 197.. <br>
        ..v=0..o=blackberry 1342175741968 1342175741968 IN IP4
        220.225.134.2..s=Phone call..c=IN IP4 220.225.134.2..t=0 0..t=0
        0..m=audio 7078 RTP/AVP 114..a=rtpmap:114 A <br>
        MR/8000/1..a=fmtp:114 octet-align=1.. <br>
        # <br>
        U(17) 220.225.134.9:5060 -&gt; 203.199.234.3:41792 <br>
        SIP/2.0 200 OK..Record-Route: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9;lr=on&gt;</a> ..Call-Id:
        <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 INVITE..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a> ;tag <br>
        =4IHoLZ2ha..Via: SIP/2.0/UDP
        220.225.134.9:5060;received=203.199.234.3;rport=41792;branch=z9hG4bKd8febfe85d601ca1b48d8bd8e6a10ba6..From:

        <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ; <br>
        tag=LXMkFpqUA..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.2:13120;nat=yes&gt;</a>
        ..Content-Type: application/sdp..Content-Length: 216..P-hint:
        onreply_route|force_rtp_proxy ..P-hint: Onr <br>
        eply-route - fixcontact ....v=0..o=blackberry 1342175741968
        1342175741968 IN IP4 220.225.134.2..s=Phone call..c=IN IP4
        220.225.134.9..t=0 0..t=0 0..m=audio 38476 <br>
        RTP/AVP 114..a=rtpmap:114 AMR/8000/1..a=fmtp:114
        octet-align=1..a=nortpproxy:yes.. <br>
        ################# <br>
        U(17) 220.225.134.2:13120 -&gt; 220.225.134.9:5060 <br>
        SIP/2.0 500 Server Internal Error..Call-Id: <a class="moz-txt-link-abbreviated" href="mailto:58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:" target="_blank">58f64298f3186a42b96a608659fd434d@220.225.134.9..CSeq:</a>
        1 ACK..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1005@220.225.134.9&gt;</a>
        ;tag=4IHoLZ2ha..Via: SIP/2.0/ <br>
        UDP 220.225.134.9:5060;branch=z9hG4bKec6a.856da06.2,SIP/2.0/UDP
        220.225.134.9:5060;received=203.199.234.3;rport=41792;branch=z9hG4bK202da30a90a53ad5d81d9256e09b6d

        <br>
        b6..From: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:1012@220.225.134.9&gt;</a>
        ;tag=LXMkFpqUA..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:220.225.134.9:5060&gt;</a>
        ..Content-Length: 0.... <br>
        #######################################################################################################

        <br>
        U(17) 220.225.134.9:5060 -&gt; 220.225.134.2:13120 <br>
        OPTIONS <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:220.225.134.2:13120</a>
        SIP/2.0..Via: SIP/2.0/UDP 220.225.134.9:5060;branch=0..From: <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pinger@PROXY_IP;tag=63cac2b..To:</a>
        <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:220.225.134.2:13120..Call-ID</a>
        <br>
        : <a class="moz-txt-link-abbreviated" href="mailto:20233266-bc88a9d3-5342d@220.225.134.9..CSeq:" target="_blank">20233266-bc88a9d3-5342d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Content-Length: 0.... <br>
        #####################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################

        <br>
        U(17) 220.225.134.9:5060 -&gt; 203.199.234.3:24922 <br>
        OPTIONS <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:203.199.234.3:24922</a>
        SIP/2.0..Via: SIP/2.0/UDP 220.225.134.9:5060;branch=0..From: <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pinger@PROXY_IP;tag=73cac2b..To:</a>
        <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:203.199.234.3:24922..Call-ID</a>
        <br>
        : <a class="moz-txt-link-abbreviated" href="mailto:20233266-cc88a9d3-9342d@220.225.134.9..CSeq:" target="_blank">20233266-cc88a9d3-9342d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Content-Length: 0.... <br>
        ################################## <br>
        U(17) 203.199.234.3:24922 -&gt; 220.225.134.9:5060 <br>
        SIP/2.0 200 OK..Via: SIP/2.0/UDP
        220.225.134.9:5060;branch=0..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:10.100.4.156:20958&gt;</a> ..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:203.199.234.3:24922&gt;</a>
        ;tag=190a3f50..From: &lt; <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pinger@PRO</a> <br>
        XY_IP&gt;;tag=73cac2b..Call-ID: <a class="moz-txt-link-abbreviated" href="mailto:20233266-cc88a9d3-9342d@220.225.134.9..CSeq:" target="_blank">20233266-cc88a9d3-9342d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Accept: application/sdp..Accept-Language: en..Allow:
        INVITE, ACK, CANCEL, OPT <br>
        IONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO..User-Agent:
        X-Lite release 1103k stamp 53621..Content-Length: 0.... <br>
        #############################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################

        <br>
        U(17) 220.225.134.9:5060 -&gt; 59.144.118.72:21788 <br>
        OPTIONS <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:59.144.118.72:21788</a>
        SIP/2.0..Via: SIP/2.0/UDP 220.225.134.9:5060;branch=0..From: <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pinger@PROXY_IP;tag=83cac2b..To:</a>
        <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:59.144.118.72:21788..Call-ID</a>
        <br>
        : <a class="moz-txt-link-abbreviated" href="mailto:20233266-dc88a9d3-c342d@220.225.134.9..CSeq:" target="_blank">20233266-dc88a9d3-c342d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Content-Length: 0.... <br>
        #################################### <br>
        U(17) 59.144.118.72:21788 -&gt; 220.225.134.9:5060 <br>
        SIP/2.0 200 OK..Via: SIP/2.0/UDP
        220.225.134.9:5060;branch=0..Contact: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:192.168.1.112:21788&gt;</a> ..To: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:59.144.118.72:21788&gt;</a>
        ;tag=bc7b1d12..From: &lt; <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pinger@PR</a> <br>
        OXY_IP&gt;;tag=83cac2b..Call-ID: <a class="moz-txt-link-abbreviated" href="mailto:20233266-dc88a9d3-c342d@220.225.134.9..CSeq:" target="_blank">20233266-dc88a9d3-c342d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Accept: application/sdp..Accept-Language: en..Allow:
        INVITE, ACK, CANCEL, OP <br>
        TIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO..Supported:
        replaces..User-Agent: X-Lite 4 release 4.1 stamp
        63215..Content-Length: 0.... <br>
        #########################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################

        <br>
        U(17) 220.225.134.9:5060 -&gt; 59.144.118.72:57246 <br>
        OPTIONS <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:59.144.118.72:57246</a>
        SIP/2.0..Via: SIP/2.0/UDP 220.225.134.9:5060;branch=0..From: <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pinger@PROXY_IP;tag=93cac2b..To:</a>
        <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:59.144.118.72:57246..Call-ID</a>
        <br>
        : <a class="moz-txt-link-abbreviated" href="mailto:20233266-ec88a9d3-1442d@220.225.134.9..CSeq:" target="_blank">20233266-ec88a9d3-1442d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Content-Length: 0.... <br>
        ############################### <br>
        U(17) 59.144.118.72:57246 -&gt; 220.225.134.9:5060 <br>
        SIP/2.0 200 OK..Via: SIP/2.0/UDP
        220.225.134.9:5060;branch=0..From: <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:pinger@PROXY&gt;</a> ;tag=61cac2b..To:
        <a class="moz-txt-link-rfc2396E" href="about:blank" target="_blank">&lt;sip:59.144.118.72:57246&gt;</a>
        ;tag=1255356873..Contact: &lt; <a class="moz-txt-link-freetext" href="about:blank" target="_blank">sip:pi</a> <br>
        <a class="moz-txt-link-abbreviated" href="mailto:nger@59.144.118.72:57246;transport=udp" target="_blank">nger@59.144.118.72:57246;transport=udp</a>
        &gt;..Call-ID: <a class="moz-txt-link-abbreviated" href="mailto:20233266-ba88a9d3-3242d@220.225.134.9..CSeq:" target="_blank">20233266-ba88a9d3-3242d@220.225.134.9..CSeq:</a>
        1 OPTIONS..Content-Length: 0.... <br>
        ############################################################################################################################################

        <br>
        <br>
        Please let me know where the error is. <br>
        <br>
        Thanks, <br>
        Arjun <br>
      </blockquote>
    </blockquote>
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