Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-12-26
2006-12-26
Mehpour, Melody (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
Reexamination Certificate
active
07155220
ABSTRACT:
A system and method of providing a subscriber in an ANSI-41 radio telecommunications network with access to an IN service in a GSM overlay network. A special Preferred Inter-exchange Carrier (PIC) category associated with the IN service is specified in the subscriber's database in the ANSI-41 Home Location Register (HLR). When an originating or terminating call for the subscriber is detected, the special PIC category is translated to a special Carrier Identification Code (CIC) code that is sent to a Mobile Switching Center/Visitor Location Register (MSC/VLR) serving the subscriber. The MSC/VLR analyzes the special CIC code and in response, routes the call to a Service Switching Point (SSP) in the GSM network rather than to an inter-exchange carrier. The SSP then accesses the IN service through a Service Control Point (SCP) in the GSM network.
REFERENCES:
patent: 5950126 (1999-09-01), Palviainen et al.
patent: 6507649 (2003-01-01), Tovander
patent: 6788959 (2004-09-01), Jokinen et al.
patent: 2002/0169883 (2002-11-01), Bright et al.
patent: 2003/0125013 (2003-07-01), Mizell et al.
Mehpour Melody
Telefonaktiebolaget LM Ericsson (publ)
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