| 摘要 |
This invention provides a system and method for routing a call from a wireless telecommunications unit for service and information. The system and method are especially useful and effective for service and information calls from wireless telecommunications that are roaming outside their home service areas. The invention allows a user of a wireless telecommunications unit to input a predetermined code, into the unit and to be connected automatically to a home service location associated with the unit. The system of the present invention includes a wireless telecommunications unit, a telecommunications system serving that unit, a routing system and means for establishing an end-to-end communications path between the wireless telecommunications unit and the home service location. The system of the present invention may also include means for informing the home service location of the location of the wireless telecommunications unit. The method of the present invention includes the steps of inputting a predetermined code into a wireless telecommunications unit; transmitting to a telecommunications system serving the unit a signal corresponding to the predetermined code and information that identifies the unit and associates the unit with a home service location; transmitting the unit identification information to a routing system; evaluating the identification information according to predetermined criteria, such as whether the home service location is served by the routing system; and, if the unit identification information meets the predetermined criteria, establishing an end-to-end communications path between the wireless telecommunications unit and the home service location.
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