| 摘要 |
A personal number communications system (10) operative to route personal number communications to subscribers at remote locations, for example to a subscriber's cellular mobile radiotelephones (16) operated in a roaming manner in a foreign cellular service area (40). Location information corresponding to the whereabouts of an active and registered mobile radiotelephone is transmitted, either directly or indirectly via a clearinghouse (35), to switching equipment that maintains a database of communications disposition information (13), comprising subscriber alternative destinations for personal number communications. The location information is continuously updated to reflect registrations and deregistrations, roaming, and other information indicative of subscriber location and status. In response to receipt of a call directed to a personal number, the switching equipment (15) is operative to route the call to the subscriber in the foreign cellular service area (40) if the communications disposition information indicates that the subscriber's cellular telephone (16) is activated and validated. |
