Public modular-telephone management system

Details Public modular-telephone management system Public modular-telephone management system

1991-04-12

1992-08-11

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of trunk or long line

379111, 379219, 379242, 379144, H04M 1102, H04M 330

Patent

active

051386488

ABSTRACT:
A public modular telephone management system. By using several units and systems, as well as ancillary elements for managing public modular telephones, it is possible to provide the public modular telephones with means of making payment for the service by using several types of cards such as: credit, prepayment, telephone subscriber or multiservice cards.

REFERENCES:
patent: 4387278 (1983-06-01), Hayes et al.
patent: 4897870 (1990-01-01), Golden

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