Add rtpproxy support in opensips

We have custom setup of 1 Opensips as proxy and 2 Freeswitch for scripts using [login to view URL] opensips script. Now we would like to move media / rtp process on opensips (Want to handle it using rtpproxt) rather than handing it using freeswitch. Note : Servers are behind NAT. So we might not be able to give you access of servers. You will need to provide customized opensips cfg file and steps to install rtp proxy. Please do bid only if you really did similar job previously and can do it quickly.