Manual



the codec is ready to accept incoming calls and block them.

 - This only applies to  mode.








established correctly.


the called codec would extract the source IP address from the incoming data and return a channel to that address.



each codec knows its public IP address.


has a private IP address, and does not know its public address. A codec will populate its private IP address (e.g.



Incoming calls to codecs behind routers are complicated by the need to forward ports on the router to the codec.






and incoming streams are relayed directly by the server, solving any router issues.