[SR-Users] help to use force_rtp_proxy([flags [, ip_address]]).

[peter_green lion]

hi all,
i am a new user kamailio.
i have configure  kamailio with RTP proxy, but i have a problem in using : 
force_rtp_proxy("c","192.168.1.10")because i want to change to force to this ip.

my configure is :

when server receive "200 OK" it change value in "c= IN IP4 <ip rtp server>" to  "c = IN IP4 192.168.1.10" 
 i configure as :
kamailio.cfg :

#!ifdef WITH_NAT
        if ((isflagset(5) || isbflagset("6")) && status=~"(183)|(2[0-9][0-9])") {
         force_rtp_proxy("c","192.168.1.10");
        }
        if (isbflagset("6")) {
                fix_nated_contact();
        }
#!endif
}

when i make call from sip a to sip b, sip b answer .trace as :

U 115.78.129.190:54337 -> <server ip>:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP <server ip>;branch=z9hG4bK00c.daa8fe8.0.
Via: SIP/2.0/UDP 192.168.1.10:50937;received=115.78.129.190;branch=z9hG4bK-d8754z-1f66a816d651d504-1---d8754z-;rport=63930.
Record-Route: <sip:<server ip>;lr;nat=yes>.
Contact: <sip:102 at 192.168.1.10:8576;rinstance=8392ffb3fe461110>.
To: <sip:102@<server ip>:5060>;tag=d179a842.
From: <sip:101@<server ip>:5060>;tag=1c61b708.
Call-ID: ZTQzYjZkYzFjODE1MWFlNjIwNmQ2ZGU5MWUxYmM1NjQ..
CSeq: 1 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, REGISTER, SUBSCRIBE, INFO.
Content-Type: application/sdp.
Supported: replaces.
User-Agent: PortGo v6.0, Build 07282010.
Content-Length: 237.
.
v=0.
o=- 30452887 30452887 IN IP4 169.254.202.160.
s=http://www.portsip.com.
c=IN IP4 169.254.202.160.
t=0 0.
m=audio 21480 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
a=sendrecv.


U <server ip>:5060 -> 115.78.129.190:63930
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.1.10:50937;received=115.78.129.190;branch=z9hG4bK-d8754z-1f66a816d651d504-1---d8754z-;rport=63930.
Record-Route: <sip:server ip;lr;nat=yes>.
Contact: <sip:102 at 115.78.129.190:54337;rinstance=8392ffb3fe461110>.
To: <sip:102 at server ip>:5060>;tag=d179a842.
From: <sip:101@<server ip>:5060>;tag=1c61b708.
Call-ID: ZTQzYjZkYzFjODE1MWFlNjIwNmQ2ZGU5MWUxYmM1NjQ..
CSeq: 1 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, REGISTER, SUBSCRIBE, INFO.
Content-Type: application/sdp.
Supported: replaces.
User-Agent: PortGo v6.0, Build 07282010.
Content-Length: 237.
.
v=0.
o=- 30452887 30452887 IN IP4 169.254.202.160.
s=http://www.portsip.com.
c=IN IP4 169.254.202.160.
t=0 0.
m=audio 21480 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
a=sendrecv.
thanks for help me.
regards.
beter_green

  		 	   		  
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