[Users] rtpproxy redundancy

[Daniel Corbe]

For various reasons we've elected to go with Porta/Maxim Sobalov's
rtpproxy as opposed to the MediaProxy code; however, we would like to
know if its possible to do any of the following with rtpproxy or if we
should consider going to MediaProxy instead

1) Multiple Load Balanced rtpproxy servers
2) Voice path fail over, so that if we lose 1 RTP proxy the call
continues on another.

I was thinking 2 could be implemented using an OpenBSD/CARP
FreeBSD/CARP type of scenario, where 2 rtpproxy servers share 1 IP
address; however, OpenSER would need to set up an rtpproxy session on
BOTH servers to accomplish this and the OS can do the rest.

Any opinions or comments are welcome.