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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hello,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I'm trying to use a SIP trunk service and the provider ask me to
have the IP address of the contact header as my public IP and not as my private
one, how can I do it?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>See attached the SIP invite where a.b.c.d is the SIP server IP
and x.y.z.w is my public address:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>sipINVITE sip:144@</span><span style='font-size:
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> a.b.c.d</span><span
style='font-size:9.0pt;font-family:"Courier New"'> SIP/2.0<span lang=HE
dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Via: SIP/2.0/UDP
10.100.101.107:5060;branch=z9hG4bK76d52819;rport<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Max-Forwards: 70<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>From: "Polycom" <sip:100@</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> x.y.z.w</span><span
style='font-size:9.0pt;font-family:"Courier New"'>>;tag=as7435100b<span
lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>To: <sip:144@</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'> a.b.c.d</span><span dir=RTL></span><span
dir=RTL style='font-size:9.0pt;font-family:"Courier New"'><span dir=RTL></span>
<span lang=HE>><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New";background:yellow;mso-highlight:yellow'>Contact:
<sip:100@10.100.101.107<span dir=RTL></span><span lang=HE dir=RTL><span
dir=RTL></span>></span></span><span lang=HE dir=RTL style='font-size:9.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Call-ID:
08116cf06661dc091de10c1b3315d2f7@84.94.96.110<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>CSeq: 102 INVITE<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>User-Agent: Asterisk PBX<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Date: Mon, 05 Jul 2010 15:49:31 GMT<span lang=HE
dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER,
SUBSCRIBE, NOTIFY, INFO<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Supported: replaces, timer<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Content-Type: application/sdp<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>Content-Length: 292<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=HE dir=RTL
style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>v=0<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>o=root 1812163927 1812163927 IN IP4 10.100.101.107<span
lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>s=Asterisk PBX 1.6.1.20<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>c=IN IP4 10.100.101.107<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>t=0 0<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>m=audio 18848 RTP/AVP 0 8 101<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=rtpmap:0 PCMU/8000<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=rtpmap:8 PCMA/8000<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=rtpmap:101 telephone-event/8000<span lang=HE
dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=fmtp:101 0-16<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=silenceSupp:off<span dir=RTL></span><span lang=HE
dir=RTL><span dir=RTL></span> - - - -<o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=ptime:20<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=sendrecv<span lang=HE dir=RTL><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=HE dir=RTL
style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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