H - Electricity – 04 – B
Patent
H - Electricity
04
B
344/15
H04B 7/26 (2006.01) H04Q 7/38 (2006.01) H04Q 7/24 (2006.01)
Patent
CA 1322397
Abstract: A technique for enabling a peregrinating Cellular Mobile Radiotelephone (CMR) subscriber to automatically receive, in a foreign service area (that is, an area outside his home service area), calls placed to his MID at his home service area. An FMR processor is coupled through a cable or LAN to a switch associated with the foreign MTSO and is coupled, preferably through a private data network, to a switch associated with the subscriber's home MTSO. Within the FMR processor resides a program that detects the reception at the foreign switch of a predetermined code indicating that calls placed to the roamer's home MID are to be forwarded to the foreign MTSO. Subsequent to the "validation" of the roamer and to the performance of certain software housekeeping tasks, the roamer is assigned a Temporary Directory Number (TDN) for use in the remote service area. The FMR processor then commands the subscriber's home MTSO switch to forward calls, placed to the subscriber's MID at the home MTSO, to the TDN. Calls are subsequently forwarded, via the PSTN, from the subscriber's home MTSO to the foreign MTSO.
611769
Crane Richard J.
Crouse Randall L.
Didion Edward L.
Horton Harold E.
Lyle Elmer
Gte Telecommunication Services Incorporated
Kirby Eades Gale Baker
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