Telecommunications systems with user programmable features

Details Telecommunications systems with user programmable features Telecommunications systems with user programmable features

1983-07-29

1985-07-16

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 85, H04Q 1104, H04J 302

Patent

active

045300909

ABSTRACT:
A processor controlled PBX system with central control and distributed group control using a processor per group. The PBX employs time division controlled speech transmission and data switching. Features of the system are programmable by the system maintenance personnel. The programmable features include the number of time slots or channels in use triggering a priority call control mode. The transfer of data between processors for monitoring may also be controlled along with the correction of data in system backup memory.

REFERENCES:
patent: 3961140 (1976-06-01), Carbrey
patent: 4140877 (1979-02-01), Joslow et al.
patent: 4254499 (1981-03-01), Yoshikane
patent: 4322845 (1982-03-01), Fennel, Jr. et al.
patent: 4354262 (1982-10-01), Guezov et al.
patent: 4379950 (1983-04-01), Ahmed
patent: 4455647 (1984-06-01), Gueldner

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