Abstract: A system and method for configuring a communication device such as IP phone to operate in central and remote networks is disclosed. A central network includes an Internet Gateway Device, an Internet Protocol Private Branch Exchange (IP PBX) and a communication device. The communication device downloads and stores a configuration file including the externally-visible IP address or unique host name of the IP PBX. Upon installation in a remote network, the communication device uses its configuration file to locate the IP PBX and configure itself automatically for use in the remote network.

Abstract: A method, apparatus and system for management of policy management servers across a geographically dispersed network is described. The policy management servers produce virtual points of presence (VPOP) for call service providers. The policy management servers are configured into clusters of policy management servers and during operation can distribute available ports for each VPOP among clusters of policy management servers.