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I have one problem -&nbsp;my FS doesn't answer on OK from the provider.<BR>Probably the problem consists in an incorrectness incoming OK.<BR>Please help.<BR><BR>&nbsp;&nbsp;<BR>U 2011/01/19 11:04:05.243062 194.190.211.190:5060 -&gt; 77.72.17.23:5060<BR>INVITE sip:74742515541@77.72.17.23 SIP/2.0.<BR>Via: SIP/2.0/UDP 194.190.211.190;rport;branch=z9hG4bK6rQjK6B04ZeNN.<BR>Max-Forwards: 69.<BR>From: "DEN78141_120" &lt;sip:TCAPI_User@77.72.17.23;transport=udp&gt;;tag=vZcKXKa0Q7B1e.<BR>To: &lt;sip:74742515541@77.72.17.23&gt;.<BR>Call-ID: 86959393-9e45-122e-1782-33002db2a994.<BR>CSeq: 7376058 INVITE.<BR>Contact: &lt;sip:gw+trunk_8@194.190.211.190:5060;transport=udp;gw=trunk_8&gt;.<BR>User-Agent: Configured by 2600hz.<BR>Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE.<BR>Supported: precondition, path, replaces.<BR>Allow-Events: talk, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer.<BR>Content-Type: application/sdp.<BR>Content-Disposition: session.<BR>Content-Length: 298.<BR>X-FS-Support: update_display.<BR>Remote-Party-ID: "DEN78141_120" &lt;sip:DEN78141_120@77.72.17.23&gt;;party=calling;screen=yes;privacy=off.<BR>.<BR>v=0.<BR>o=FreeSWITCH 1295404175 1295404176 IN IP4 194.190.211.190.<BR>s=FreeSWITCH.<BR>c=IN IP4 194.190.211.190.<BR>t=0 0.<BR>m=audio 20070 RTP/AVP 0 9 8 101 13.<BR>a=rtpmap:0 PCMU/8000.<BR>a=rtpmap:9 G722/8000.<BR>a=rtpmap:8 PCMA/8000.<BR>a=rtpmap:101 telephone-event/8000.<BR>a=fmtp:101 0-16.<BR>a=rtpmap:13 CN/8000.<BR>a=ptime:30.<BR><BR>U 2011/01/19 11:04:05.288882 77.72.17.23:5060 -&gt; 194.190.211.190:5060<BR>SIP/2.0 100 Trying.<BR>Via: SIP/2.0/UDP 194.190.211.190:5060;rport;branch=z9hG4bK6rQjK6B04ZeNN.<BR>From: "DEN78141_120" &lt;sip:TCAPI_User@77.72.17.23;transport=udp&gt;;tag=vZcKXKa0Q7B1e.<BR>To: &lt;sip:74742515541@77.72.17.23&gt;;tag=0eff5d003cff3610ff00001372630472.<BR>Call-ID: 86959393-9e45-122e-1782-33002db2a994.<BR>CSeq: 7376058 INVITE.<BR>Contact: &lt;sip:74742515541@77.72.17.23;user=phone&gt;.<BR>Server: MERA MSIP v.1.0.2.<BR>Content-Length: 0.<BR>.<BR><BR>U 2011/01/19 11:04:06.609863 77.72.17.23:5060 -&gt; 194.190.211.190:5060<BR>SIP/2.0 183 Session Progress.<BR>Via: SIP/2.0/UDP 194.190.211.190:5060;rport;branch=z9hG4bK6rQjK6B04ZeNN.<BR>From: "DEN78141_120" &lt;sip:TCAPI_User@77.72.17.23;transport=udp&gt;;tag=vZcKXKa0Q7B1e.<BR>To: &lt;sip:74742515541@77.72.17.23&gt;;tag=0eff5d003cff3610ff00001372630472.<BR>Call-ID: 86959393-9e45-122e-1782-33002db2a994.<BR>CSeq: 7376058 INVITE.<BR>Contact: &lt;sip:74742515541@77.72.17.23;user=phone&gt;.<BR>Server: MERA MSIP v.1.0.2.<BR>Content-Type: application/sdp.<BR>Content-Length:&nbsp;&nbsp; 212.<BR>.<BR>v=0.<BR>o=- 1295424317 1295424317 IN IP4 77.72.17.23.<BR>s=-.<BR>c=IN IP4 77.72.17.23.<BR>t=0 0.<BR>m=audio 18360 RTP/AVP 0 8 101.<BR>a=rtpmap:0 PCMU/8000.<BR>a=rtpmap:8 PCMA/8000.<BR>a=rtpmap:101 telephone-event/8000.<BR>a=fmtp:101 0-15.<BR><BR>U 2011/01/19 11:04:14.238660 77.72.17.23:5060 -&gt; 194.190.211.190:5060<BR>SIP/2.0 200 OK.<BR>Via: SIP/2.0/UDP 194.190.211.190:5060;rport;branch=z9hG4bK6rQjK6B04ZeNN.<BR>From: "DEN78141_120" &lt;sip:TCAPI_User@77.72.17.23;transport=udp&gt;;tag=vZcKXKa0Q7B1e.<BR>To: &lt;sip:74742515541@77.72.17.23&gt;;tag=0eff5d003cff3610ff00001372630472.<BR>Call-ID: 86959393-9e45-122e-1782-33002db2a994.<BR>CSeq: 7376058 INVITE.<BR>Contact: &lt;sip:74742515541@77.72.17.23;user=phone&gt;.<BR>Server: MERA MSIP v.1.0.2.<BR>Content-Type: application/sdp.<BR>Content-Length:&nbsp;&nbsp; 212.<BR>.<BR>v=0.<BR>o=- 1295424325 1295424325 IN IP4 77.72.17.23.<BR>s=-.<BR>c=IN IP4 77.72.17.23.<BR>t=0 0.<BR>m=audio 18360 RTP/AVP 0 8 101.<BR>a=rtpmap:0 PCMU/8000.<BR>a=rtpmap:8 PCMA/8000.<BR>a=rtpmap:101 telephone-event/8000.<BR>a=fmtp:101 0-15.<BR><BR>U 2011/01/19 11:04:14.246657 77.72.17.23:5060 -&gt; 194.190.211.190:5060<BR>SIP/2.0 200 OK.<BR>Via: SIP/2.0/UDP 194.190.211.190:5060;rport;branch=z9hG4bK6rQjK6B04ZeNN.<BR>From: "DEN78141_120" &lt;sip:TCAPI_User@77.72.17.23;transport=udp&gt;;tag=vZcKXKa0Q7B1e.<BR>To: &lt;sip:74742515541@77.72.17.23&gt;;tag=0eff5d003cff3610ff00001372630472.<BR>Call-ID: 86959393-9e45-122e-1782-33002db2a994.<BR>CSeq: 7376058 INVITE.<BR>Contact: &lt;sip:74742515541@77.72.17.23;user=phone&gt;.<BR>Server: MERA MSIP v.1.0.2.<BR>Content-Type: application/sdp.<BR>Content-Length:&nbsp;&nbsp; 212.<BR>.<BR>v=0.<BR>o=- 1295424325 1295424325 IN IP4 77.72.17.23.<BR>s=-.<BR>c=IN IP4 77.72.17.23.<BR>t=0 0.<BR>m=audio 18360 RTP/AVP 0 8 101.<BR>a=rtpmap:0 PCMU/8000.<BR>a=rtpmap:8 PCMA/8000.<BR>a=rtpmap:101 telephone-event/8000.<BR>a=fmtp:101 0-15.<BR><BR>U 2011/01/19 11:04:14.747863 77.72.17.23:5060 -&gt; 194.190.211.190:5060<BR>SIP/2.0 200 OK.<BR>Via: SIP/2.0/UDP 194.190.211.190:5060;rport;branch=z9hG4bK6rQjK6B04ZeNN.<BR>From: "DEN78141_120" &lt;sip:TCAPI_User@77.72.17.23;transport=udp&gt;;tag=vZcKXKa0Q7B1e.<BR>To: &lt;sip:74742515541@77.72.17.23&gt;;tag=0eff5d003cff3610ff00001372630472.<BR>Call-ID: 86959393-9e45-122e-1782-33002db2a994.<BR>CSeq: 7376058 INVITE.<BR>Contact: &lt;sip:74742515541@77.72.17.23;user=phone&gt;.<BR>Server: MERA MSIP v.1.0.2.<BR>Content-Type: application/sdp.<BR>Content-Length:&nbsp;&nbsp; 212.<BR>.<BR>v=0.<BR>o=- 1295424325 1295424325 IN IP4 77.72.17.23.<BR>s=-.<BR>c=IN IP4 77.72.17.23.<BR>t=0 0.<BR>m=audio 18360 RTP/AVP 0 8 101.<BR>a=rtpmap:0 PCMU/8000.<BR>a=rtpmap:8 PCMA/8000.<BR>a=rtpmap:101 telephone-event/8000.<BR>a=fmtp:101 0-15.<BR><BR><BR><BR><BR>--<BR>Почта@Mail.Ru в твоем мобильном. <BR>Просто зайди с телефона на m.mail.ru<BR></BODY></HTML>