CIRCUIT SWITCHED CELLULAT NETWORK TO INTERNET CALLING

摘要

A call routing system for use with a wireless telephone systems is disclosed. The system, which monitors the subscriber's current phyisical location, determines the device to which a call should be terminated, and routes the call. The device can be any IP telephone, including a cable television system adapted to IP telephany. The system routes calls without direct subsciber actions, without a second telephone number, regardless of the time of day and day of week. Various options can also apply to a call, determined by subscriber-established preferences, when specifiec criteriea are met, or calls can be limited to/from specified telphone numbers. The system and method uses signalling techniques that will allow routing of the call, along with any authorization or restrictions, to be done remotely from the actual switching of the call. Call events are transmitted to the call routing system while the communications path of the call is held at the switching system awaiting call routing information. The identity of the subscriber is established using existing means that are used to authenticate the user. The wireless phone user does not have to enter any additional codes or identification to obtain access to teh call routing system.