[OpenSER-Users] Openser and RTPProxy

[Patrick Baker]

Is is possible to have a SIP UA behind nat and communicate to an 
OpenSER/RTP Proxy server behind nat behind nat and have everything 
transverse appropriately?  Or will I need something additional like STUN?

Example:

OpenSER + RTP Proxy + Asterisk will all reside on the same machine.

SIP UA -> Cisco PIX ( Public IP to Localnet NAT ) -> OpenSER/RTP -> Asterisk

Thank you for your time,

Patrick