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