Re: [OpenSER-Users] port modification is sdp

Hi, I am deploying openser 1.2.2-notls on a machine with public IP. On the same machine I run a sip client (A) that registers with the above openser. On an another machine behind NAT (typical adsl router) I use a sip client (B) to register with the above openser and try to invite sip client A. I do not use any NAT-traversal techniques (the outgoing packets from B are modified by NAT and reach openser, responses are received by B through NAT due to statefull (?) routing on the NAT). The SIP messages reach their destination properly and moreover the IP addresses in the SDP (from B) are updated by openser to indicate the external interface of NAT. This is very useful in my case since the client A sends the media packets to the proper address (I also configure virtual servers on the adsl router to have these forwarded to B). However, the port numbers in the SDP are also updated (usually by an offset of +16) which hinders the media session from A to B since B is expecting the packets on other ports. Is there any way to have the ports remain unaltered during the above operation? Thanks in advance, Kostas