Dinesh wrote:
As use of the RTPproxy consumes bandwidth on the SER/RTPproxy machines interface we would like to avoid it's use as much as possible. It appears that nat_uac_test detects our UA that are configed with port forwarding or DMZ as being behind NAT there by setting flag 6 and
Maybe you can try to be a bit more selective with the "nat_uac_test". My guess is that it is testing positive for test #1(test if source address of signaling is different from address advertised in Via). Try testing only for test #2( test for occurences of RFC1918 addresses in Contact header field) by using nat_uac_test("2").