Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-12-09
1999-08-24
Vo, Nguyen
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455433, H04Q 720
Patent
active
059436204
ABSTRACT:
A home location register (HLR) associated with a particular mobile subscription correlates two different international mobile subscriber identity (IMSI) numbers with a particular mobile subscriber integrated service digital network (MSISDN) number. When an incoming call connection is received towards that MSISDN number, the HLR makes a determination as to which one of the two mobile stations associated with the two IMSI numbers is active. The incoming call connection is then forwarded to the active mobile station. In case both mobile stations are active, the received incoming call connection is rerouted to the mobile station preassigned as a primary mobile station.
REFERENCES:
patent: 5357558 (1994-10-01), Yoshikawa
patent: 5454032 (1995-09-01), Pinard et al.
patent: 5600704 (1997-02-01), Ahlberg et al.
patent: 5699407 (1997-12-01), Nguyen
EPO International Search Report dated Aug. 04, 1998.
Ballot Version; TR-45; International Implementation of Wireless Telecommunication Systems; Compliant with TIA/EIA/IS-41; Proposed TSB-29 Revision B (PN-3173); May 4, 1993; pp. i-ii and 1-9.
Boltz David
Westbrook Bret
Ericsson Inc.
Vo Nguyen
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