Patent ID: 7197306
Filing Date: 2007-03-27
Classification: H04M,H04W

Abstract:
1. A home-zone location registering method for a mobile switching center (MSC) for a home-zone service that charges at a first charging rate for a telephone call made inside a predetermined home zone and at a second charging rate for a telephone call made outside the home zone, the method comprising the steps of: checking whether a location registration request is received from a portable radio telephone; if the location registration request is received, checking whether the portable radio telephone deviates from the home zone by checking whether the current position of the portable radio telephone is included in a home-zone list; upon receiving a call origination from the portable radio telephone, releasing the call origination if the portable radio telephone is deviated from the home zone; disregarding a call termination if the portable radio telephone deviated from the home zone receives the call termination; and, preventing a paging by the MSC to notify the portable radio telephone that the portable telephone deviated from the home zone.