Implementing number portability using a flexible numbering regis

Details Implementing number portability using a flexible numbering regis Implementing number portability using a flexible numbering regis

1997-10-31

2000-04-11

Le, Thanh Cong

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455445, H04B 700

Patent

active

060497149

ABSTRACT:
A telecommunications system and method for routing a phone call when the switch serving the caller cannot access a database is disclosed. The system includes a switch serving mobile stations, a node for receiving information from the switch and for determining whether or not the telephone call terminates at a mobile station, a database for sending information when the telephone call terminates at a mobile station and a second database for sending information when the telephone call does not terminate at a mobile station. The method involves receiving the telephone call at a switch serving mobile stations sending information pertaining to the telephone call to a node, determining whether the telephone call terminates at a mobile station, when the telephone call does terminate at a mobile station, accessing one database, and when the call does not terminate at a mobile station, accessing a second database.

REFERENCES:
patent: 5610974 (1997-03-01), Lannto
patent: 5771275 (1998-06-01), Brunner et al.
patent: 5884179 (1999-03-01), Patel

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