<DIV>
<DIV>
<DIV>Hello,</DIV>
<DIV> </DIV>
<DIV>I have a problem whereby when a private client rings a public client only the public user can hear voice and when the public user rings the private user, no audio is transmitted. After looking at the messages I have have determined that the contact header and sdp part of the invite contains the private address of the natted client. This would lead me to believe that the registration process is incorrect. My problem is that I believe my script should handle the registration process correctly and I suspect that the following code is being skipped: I tried changing it to nat_uac_test("19") and fix_nated_sdp("3") but that didnt help.</DIV>
<DIV> </DIV>
<DIV>if (nat_uac_test("3")){<BR> if (method == "REGISTER" || ! search("^Record-Route:")){<BR> log("Log: Someone trying to register from private IP,rewriting\n");<BR> fix_nated_contact(); #Rewrite contact with source IP<BR> if (method == "INVITE"){<BR> fix_nated_sdp("1"); #Add direction=active to SDP<BR> force_rtp_proxy();<BR> };<BR> force_rport(); # Add rport parameter to topmost Via<BR> setflag(6); # Mark as Nated<BR> };<BR> };</DIV>
<DIV> </DIV>
<DIV>I have included the log message below and my ser.cfg as an attachment. Please let me know where I could be going wrong.</DIV>
<DIV> </DIV>
<DIV>Thank you,</DIV>
<DIV>Vivienne.</DIV>
<DIV> </DIV>
<DIV>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>2093 (private) ringing 2092 (public)</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>U 84.203.148.14:5060 -> 84.203.148.146:5060</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>INVITE sip:2092@84.203.148.146 SIP/2.0..Via: SIP/2.0/UDP 172.16.3.31;branch</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>=z9hG4bK1a48edc121f5bc1f..From: "2093" <sip:2093@84.203.148.146>;tag=2dc376</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>dcd4655094..To: <sip:2092@84.203.148.146>..Contact: <sip:2093@172.16.3.31>.</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>.Supported: replaces..Call-ID: 44e1ae63c476fbff@172.16.3.31..CSeq: 10327 IN</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>VITE..User-Agent: Grandstream BT100 1.0.5.18..Max-Forwards: 70..Allow: INVI</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>TE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Type: applic</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ation/sdp..Content-Length: 362....v=0..o=2093 8000 0 IN IP4 172.16.3.31..s=</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>SIP Call..c=IN IP4 172.16.3.31..t=0 0..m=audio 5004 RTP/AVP 0 8 4 18 2 15 9</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>9 9..a=sendrecv..a=rtpmap:0 PCMU/8000/3..a=rtpmap:8 PCMA/8000/3..a=rtpmap:4</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>G723/8000/3..a=rtpmap:18 G729/8000/3..a=rtpmap:2 G726-32/8000/3..a=rtpmap:</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>15 G728/8000/3..a=rtpmap:99 iLBC/8000/3..a=fmtp:99 mode=20..a=rtpmap:9 G722</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>/8000/3..a=ptime:20..</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>U 84.203.148.146:5060 -> 84.203.148.14:5060</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP 172.16</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>.3.31;branch=z9hG4bK1a48edc121f5bc1f;rport=5060;received=84.203.148.14..Fro</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>m: "2093" <sip:2093@84.203.148.146>;tag=2dc376dcd4655094..To: <sip:2092@84.</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>203.148.146>..Call-ID: 44e1ae63c476fbff@172.16.3.31..CSeq: 10327 INVITE..Se</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>rver: Sip EXpress router (0.8.14 (i386/linux))..Content-Length: 0..Warning:</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>392 84.203.148.146:5060 "Noisy feedback tells:<SPAN style="mso-spacerun: yes"> </SPAN>pid=4732 req_src_ip=84.203</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN lang=FR style="mso-ansi-language: FR">.148.14 req_src_port=5060 in_uri=sip:2092@84.203.148.146 out_uri=sip:2092@1<o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN lang=FR style="mso-ansi-language: FR"><SPAN style="mso-spacerun: yes"> </SPAN></SPAN>57.190.74.151 via_cnt==1"....</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>U 84.203.148.146:5060 -> 157.190.74.151:5060</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>INVITE sip:2092@157.190.74.151 SIP/2.0..Via: SIP/2.0/UDP 84.203.148.146;bra</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>nch=z9hG4bK77bc.b54ca216.0..Via: SIP/2.0/UDP 172.16.3.31;rport=5060;receive</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>d=84.203.148.14;branch=z9hG4bK1a48edc121f5bc1f..From: "2093" <sip:2093@84.2</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>03.148.146>;tag=2dc376dcd4655094..To: <sip:2092@84.203.148.146>..Contact: <</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>sip:2093@84.203.148.14:5060>..Supported: replaces..Call-ID: 44e1ae63c476fbf</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>f@172.16.3.31..CSeq: 10327 INVITE..User-Agent: Grandstream BT100 1.0.5.18..</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>Max-Forwards: 69..Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SU</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>BSCRIBE..Content-Type: application/sdp..Content-Length: 443....v=0..o=2093</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>8000 0 IN IP4 172.16.3.31..s=SIP Call..c=IN IP4 84.203.148.1484.203.148.146</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>..t=0 0..m=audio 35006 RTP/AVP 0 8 4 18 2 15 99 9..a=sendrecv..a=rtpmap:0 P</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>CMU/8000/3..a=rtpmap:8 PCMA/8000/3..a=rtpmap:4 G723/8000/3..a=rtpmap:18 G72</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>9/8000/3..a=rtpmap:2 G726-32/8000/3..a=rtpmap:15 G728/8000/3..a=rtpmap:99 i</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>LBC/8000/3..a=fmtp:99 mode=20..a=rtpmap:9 G722/8000/3..a=ptime:20..a=direct</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ion:active..a=oldmediaip:172.16.3.31..a=nortpproxy:yes..</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>U 84.203.148.146:5060 -> 157.190.74.150:5060</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>INVITE sip:2092@157.190.74.150 SIP/2.0..Via: SIP/2.0/UDP 84.203.148.146;bra</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>nch=z9hG4bK77bc.b54ca216.1..Via: SIP/2.0/UDP 172.16.3.31;rport=5060;receive</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>d=84.203.148.14;branch=z9hG4bK1a48edc121f5bc1f..From: "2093" <sip:2093@84.2</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>03.148.146>;tag=2dc376dcd4655094..To: <sip:2092@84.203.148.146>..Contact: <</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>sip:2093@84.203.148.14:5060>..Supported: replaces..Call-ID: 44e1ae63c476fbf</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>f@172.16.3.31..CSeq: 10327 INVITE..User-Agent: Grandstream BT100 1.0.5.18..</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>Max-Forwards: 69..Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SU</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>BSCRIBE..Content-Type: application/sdp..Content-Length: 443....v=0..o=2093</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>8000 0 IN IP4 172.16.3.31..s=SIP Call..c=IN IP4 84.203.148.1484.203.148.146</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>..t=0 0..m=audio 35006 RTP/AVP 0 8 4 18 2 15 99 9..a=sendrecv..a=rtpmap:0 P</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>CMU/8000/3..a=rtpmap:8 PCMA/8000/3..a=rtpmap:4 G723/8000/3..a=rtpmap:18 G72</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>9/8000/3..a=rtpmap:2 G726-32/8000/3..a=rtpmap:15 G728/8000/3..a=rtpmap:99 i</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>LBC/8000/3..a=fmtp:99 mode=20..a=rtpmap:9 G722/8000/3..a=ptime:20..a=direct</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ion:active..a=oldmediaip:172.16.3.31..a=nortpproxy:yes..</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>U 157.190.74.151:5060 -> 84.203.148.146:5060</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>SIP/2.0 100 Trying..Via: SIP/2.0/UDP 84.203.148.146;branch=z9hG4bK77bc.b54c</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>a216.0..Via: SIP/2.0/UDP 172.16.3.31;rport=5060;received=84.203.148.14;bran</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ch=z9hG4bK1a48edc121f5bc1f..From: "2093" <sip:2093@84.203.148.146>;tag=2dc3</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>76dcd4655094..To: <sip:2092@84.203.148.146>..Call-ID: 44e1ae63c476fbff@172.</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>16.3.31..CSeq: 10327 INVITE..User-Agent: Grandstream BT100 1.0.5.18..Conten</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>t-Length: 0....</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman" size=3>U 157.190.74.151:5060 -> 84.203.148.146:5060</FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="mso-spacerun: yes"> </SPAN>SIP/2.0 180 Ringing..Via: SIP/2.0/UDP 84.203.148.146;branch=z9hG4bK77bc.b54</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ca216.0..Via: SIP/2.0/UDP 172.16.3.31;rport=5060;received=84.203.148.14;bra</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>nch=z9hG4bK1a48edc121f5bc1f..From: "2093" <sip:2093@84.203.148.146>;tag=2dc</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>376dcd4655094..To: <sip:2092@84.203.148.146>;tag=10bdf2044401a257..Call-ID:</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>44e1ae63c476fbff@172.16.3.31..CSeq: 10327 INVITE..User-Agent: Grandstream</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>BT100 1.0.5.18..Content-Length: 0....</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><o:p><FONT face="Times New Roman" size=3> </FONT></o:p></P></DIV></DIV></DIV><p>Send instant messages to your online friends http://uk.messenger.yahoo.com