====== How to set up nathelper/rtpproxy when both SIP UA's are behind same NAT ======
The suggestion below is from Klaus Darilion
This should work as long as there is only one client registered.
If there are multiple branches, step 2 must be done in the branch route.
#incoming call
# step 1
write src_ip $si to AVP
lookup("location");
# step 2
write destination IP $dd into AVP
compare AVPs
if AVP1!=AVP2 && natflag {use rtpproxy}
The following code snippet was presented by Tavis P.
else if ( isflagset(2) and isflagset(3) )
{
log(1, "Both Clients are behind NAT");
# Store the destination domain into an AVP
avp_printf("$avp(i:450)", "$dd");
if ( avp_check("i:450", "eq/$src_ip/g") )
{
xlog("L_INFO", "Detected Two Clients Behind the Same NAT - Disabling Mediaproxy");
# Do not use mediaproxy as the clients seem to be behind the same NAT
resetflag(2);
resetflag(3);
}
}