System and method for providing portable telephone number servic

Details System and method for providing portable telephone number servic System and method for providing portable telephone number servic

1995-04-06

1996-11-05

Chin, Wellington

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379111, 379112, 379115, 379207, 379211, 379216, 379220, 379229, 379230, H04M 1500, H04M 1506, H04M 342, H04M 700

Patent

active

055725791

ABSTRACT:
In an Advanced Intelligent Telephone Network system, switching points are programmed to trigger a query to a Service Control Point ("SCP") in response to a dialed "500" number. The SCP performs a data request of an outside database storing service provider information, obtaining a service provider identification or a routing number corresponding to the dialed "500" number. The SCP then transmits a switching instruction to the service system point to route the call to the appropriate destination number.

REFERENCES:
patent: 4313035 (1982-01-01), Jordan
patent: 5008929 (1991-04-01), Olsen
patent: 5251248 (1993-10-01), Tokunaga
patent: 5282244 (1994-01-01), Fuller
patent: 5315636 (1994-05-01), Patel
patent: 5353331 (1994-10-01), Emery

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