If you are deploying your telephony solution along with LanScape proxy/registrar support, your applications have the ability to automatically detect NAT router configurations and Wan IP address assignments. If your telephony application registers with a LanScape registrar, the registrar will report back to your application the Wan IP address of your “telephony system”.
There is a single telephony media engine event that is sent back to an application. For further information, see the following links: