[Serusers] NAT Problem (Mediaproxy)... Pls help

Hi Guys, I have a NAT problem, whereby I cannot get the RTP packets from a NATed user. Hence, I am trying to implement the Mediaproxy solution from ONSIP. 1. Mediaproxy and Ser are installed on the same PC, say 202.123.45.85. I've set SER to listen at 202.123.45.85, port 5060. How should I configure the ini file for Mediaproxy? Can someone please provide me with a simple example of how the mediaproxy ini file should be configured? 2. Assuming that I set mediaproxy to listen at 202.123.45.85, port 5061, & SER at 202.123.45.85, port 5060, how should my client's sip proxy setting be set? Is it 202.123.45.85:5061? 3. Mediaproxy has settings for proxy dispatcher & mediaproxy. What should be the settings for them in my case? 4. Do I need to configure additional files other than ser.cfg & mediaproxy.ini? 5. Lastly, for SER I am using : modparam("usrloc", "db_mode", 0) to check for all registered users online, do I use the command : serctl ul show Many thanks any suggestions. Regards, Zan