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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Have you tried setting<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'>externip=<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'>In the [general] of your sip.conf?<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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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>Eyal
Goltzman<br>
<b>Sent:</b> Monday, July 05, 2010 1:58 PM<br>
<b>To:</b> 'Asterisk Users Mailing List - Non-Commercial Discussion'<br>
<b>Subject:</b> [asterisk-users] How to change the IP in the SIP contact header<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<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><span
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"'>Via: SIP/2.0/UDP
10.100.101.107:5060;branch=z9hG4bK76d52819;rport</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"'>Max-Forwards: 70</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"'>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><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"'>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></span><span dir=RTL style='font-size:9.0pt;font-family:"Courier New"'><span
dir=RTL></span><span dir=RTL></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";background:yellow;mso-highlight:yellow'>Contact: <sip:100@10.100.101.107</span><span
dir=RTL></span><span dir=RTL></span><span lang=HE dir=RTL style='font-size:
9.0pt;font-family:"Courier New";background:yellow;mso-highlight:yellow'><span
dir=RTL></span><span dir=RTL></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><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"'>CSeq: 102 INVITE</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"'>User-Agent: Asterisk PBX</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"'>Date: Mon, 05 Jul 2010 15:49:31 GMT</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"'>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER,
SUBSCRIBE, NOTIFY, INFO</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"'>Supported: replaces, timer</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"'>Content-Type: application/sdp</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"'>Content-Length: 292</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 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><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"'>o=root 1812163927 1812163927 IN IP4 10.100.101.107</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"'>s=Asterisk PBX 1.6.1.20</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"'>c=IN IP4 10.100.101.107</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"'>t=0 0</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"'>m=audio 18848 RTP/AVP 0 8 101</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"'>a=rtpmap:0 PCMU/8000</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"'>a=rtpmap:8 PCMA/8000</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"'>a=rtpmap:101 telephone-event/8000</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"'>a=fmtp:101 0-16</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"'>a=silenceSupp:off</span><span dir=RTL></span><span
dir=RTL></span><span lang=HE dir=RTL style='font-size:9.0pt;font-family:"Courier New"'><span
dir=RTL></span><span dir=RTL></span> - - - -<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>a=ptime:20</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"'>a=sendrecv</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 lang=HE dir=RTL
style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=AR-SA dir=RTL style='font-size:11.0pt;font-family:
"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
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