Telephone interface call processing system with call selectivity

Details Telephone interface call processing system with call selectivity Telephone interface call processing system with call selectivity

1991-10-21

1993-10-05

Ng, Jin F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Polling

379 95, 379 97, 379142, H04M 1100

Patent

active

052512525

ABSTRACT:
For use with a public telephone network CO incorporating a vast number of terminals Tl-Tn, a system CS limits and controls interface access to implement voice-digital communication for statistical processing. The system CS accommodates calls in different modes, e.g. "800", "900" or area code and incorporates qualifying apparatus to restrict against caller misuse. Alternative calling modes are used to reach an interface facility that also affords some control based on calling terminal identification, e.g. as by ANI equipment.

REFERENCES:
patent: 4797911 (1989-01-01), Szlam et al.
patent: 4922522 (1990-05-01), Scanlon

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