Telephone apparatus

Details Telephone apparatus Telephone apparatus

H - Electricity

04

M

379/47, 354/230.

H04M 3/60 (2006.01)

Patent

CA 1089130

ABSTRACT An operator's telephone control console for use with a central telephone switching control unit, includes a signalling keypad for setting up telephone connections, a microprocessor connected to receive an operator's telephone switching instructions from the keypad, to carry out such instructions and to communicate correspondingly with the central telephone switching control unit as required to effectuate the desired switching operations. An address bus and a data bus inter- connect the microprocessor and the keypad so that the signalling output of the keypad is by way of the data bus and is at least partially controlled by signals from the microprocessor to the keypad by way of the address bus.

348812

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