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<TITLE>Two c= tag in sdp body</TITLE>
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<P><FONT SIZE=2 FACE="Arial CE">Hello,</FONT>
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<P><FONT SIZE=2 FACE="Arial CE">I use OpenSer with Cisco</FONT><SPAN LANG="en-us"> <FONT SIZE=2 FACE="Arial">AS5300/5350/5400</FONT></SPAN><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE"> with IOS 12.3.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">When Cisco sends an OK 200 SIP message to OpenSer, there are two "c=IN IPV4" tags in sdp body with the same IP address.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">The nathelper module only replaces the last occurence of c= tag so some SIP clients works wrong because those get the first IP from the first "c=" tag…</FONT></SPAN></P>
<P><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">How can i replace the all occurences of "c=" tag in sdp body with the help of nathelper?</FONT></SPAN>
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<P><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">Thx,</FONT></SPAN>
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<P><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">Antal</FONT></SPAN>
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<P><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">Content-Type: application/sdp. </FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">Content-Length: 277.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">v=0.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">o=CiscoSystemsSIP-GW-UserAgent 7144 773 IN IP4 213.253.220.242.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">s=SIP Call.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">c=IN IP4 213.253.xxx.xxx. -> this is the original address of Cisco GW</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">t=0 0.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">m=audio 35944 RTP/AVP 18.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">c=IN IP4 213.253.xxx.yyy. -> this is the nated address replaced by nathelper</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">a=rtpmap:18 G729/8000.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">a=fmtp:18 annexb=no.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">m=video 35946 RTP/AVP.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">c=IN IP4 213.253.220.253.</FONT></SPAN>
<BR><SPAN LANG="hu"><FONT SIZE=2 FACE="Arial CE">a=nortpproxy:yes.</FONT></SPAN>
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