Hi Carsten,
I tried RTPProxy using external address. It work out from the box without any problem. UA successfully registered and RTP-Traffic relay work.
Yup but now im trying to put the Box behind the nat.
i refer to this thread http://lists.sip-router.org/pipermail/sr-users/2011-June/069223.html
im able to put rtpproxy behind nat but need to modify the SDP body put in the proper ip address.
so im trying to use force_rtp_proxy("co","external-address"); to modify the (c=) and (o=) in SDP body.
but in the SDP body i didnt see any changes of the ip address i tried adding several flags f,r,w but no luck.
if i double my line "force_rtp_proxy("co","external-address");" in my SDP body i will get double private ip (c=192.168.1.3192.168.1.3) and (o=192.168.1.3192.168.1.3)
thanks in advance,