Multiplex communications – Pathfinding or routing
Patent
1998-08-05
2000-01-11
Patel, Ajit
Multiplex communications
Pathfinding or routing
370310, 455417, 455445, 455461, 379210, H04Q 722
Patent
active
060143770
ABSTRACT:
A method and system for routing a call incoming to a Private Branch Exchange (PBX) network telephone number from outside of the PBX network based on a PBX subscriber's location includes routing the call to a wireline switch which detects predetermined PBX triggers. Also included is generating a query at the switch for receipt by the wireline service control point (SCP) upon detecting the PBX triggers. The query requests mobile registration status data which corresponds to the PBX number. Also included is routing the call from the switch to a PBX switch for delivery to a PBX handset corresponding to the PBX number, which is in response to the PBX's subscriber mobile registration data indicating that the PBX subscriber is not wireless registered. Further included is generating a mobile query at the SCP to a Home Location Register (HLR) of the wireless network in response to the mobile registration status data indicating that the subscriber is wireless registered. The mobile query requests a current subscriber mobile location and wireless routing destination number. Also included is communicating a wireless routing destination number from the HLR to the SCP. Also included is generating a message to the switch from the SCP that the call is to be routed to the wireless network. The call is routed from the switch to the wireless network which in turn routes the call to the wireless routing destination number.
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Patel Ajit
US West, Inc.
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