Method of integrating one or more accessory function modules in

Details Method of integrating one or more accessory function modules in Method of integrating one or more accessory function modules in

1989-12-08

1991-02-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 857, H04J 316

Patent

active

049950347

ABSTRACT:
A method of integrating one or more accessory function modules in telecommunication systems is disclosed, especially digital telephone extension systems, where communication between two user terminals is achieved using time division multiplexing by assigning a pair of time slots through a central exchange, and by preassigning at least one particular time slot which can be accessed to allow communication between the accesory function module or modules and the user terminals.

REFERENCES:
patent: 3732374 (1973-05-01), Rocher
patent: 3870825 (1975-03-01), Roberts
patent: 3937892 (1976-02-01), Bloch
patent: 4156112 (1979-05-01), Moreland
patent: 4503533 (1985-03-01), Tobagi
patent: 4763320 (1980-08-01), Rudolph

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