Abstract: A mobile station has multiple communication modules for multiple wireless communication modes. In a first wireless communication mode, the mobile station communicates with a wireless wide area network and is identified by a first, mobile directory number. In a second wireless communication mode, the mobile station communicates with a wireless local area network and is still identified by the first, mobile directory number. In a third wireless communication mode, the mobile station communicates with the wireless local area network but is identified by a second, local directory number.

Abstract: An intelligent switching system and method provides an alternate, least-cost telecommunications link (which may be a wireless link) between a base transceiver station (BTS) and a base station controller (BSC) in a radio access network (RAN). Signals may be routed via the alternate telecommunications link or via an existing telecommunications link based on the sensitivity of the signals to transmission latency. The switching system may determine the sensitivity of the signals to transmission latency.

Abstract: A method for allowing multiple service providers to provide services via a common access network. The access network is arranged with multiple logical network layers, each specific to a respective service provider. Upon successful authentication of a subscriber by a given service provider, the access network assigns that subscriber to the logical layer specific to the authenticating service provider. The access network then handles communication traffic in that logic layer in a manner specific to the service provider.

Abstract: A communication system is disclosed that provides usage-based billing for voice communications transmitted over a packet system. The communication system is comprised of a packet billing system that sniffs signaling transmitted between a signaling processor and a communication device, such as a switch or a router. If the packet billing system detects a call setup message in the signaling, then the packet billing system generates a start record. If the packet billing system detects a call complete message in the signaling, then the packet billing system generates an end record. The packet billing system transfers the start record and the end record to a conventional public switched telephone network (PSTN) billing system. The PSTN billing system generates a bill for the call based on the start record and the end record. The communication system advantageously provides usage-based billing for packet-based calls using the conventional PSTN billing system.