Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-12-23
2000-05-16
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455 121, 455445, H04Q 720
Patent
active
060648821
ABSTRACT:
A telecommunications system and method is disclosed which allows for optimization of calls using satellite resources by moving a Mobile Station's (MSs) registration to an optimum Mobile Switching Center/Visitor Location Register (MSC/VLR) within the area visible to the satellite. This can be accomplished by sending the Called Party Number (CPN) to a Call Optimization Server (COS), which performs a pre-analysis on the CPN to determine the optimum MSC/VLR, e.g., the MSC/VLR with the closest connection to the called subscriber. Thereafter, the address of the optimum MSC/VLR is returned to the MS, which can then register with the indicated MSC/VLR and send a SETUP message to the new MSC/VLR to complete the call. This optimization can also be performed for mobile terminated calls, from either another Mobile Station or from a caller within the Public Switched Telephone Network (PSTN) (wireline network).
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PCT International Search Report dated Apr. 21, 1999.
Coyne Michael
Havinis Theodore
Valentine Eric
Bost Dwayne D.
Ericsson Inc.
Vuong Quochien B.
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