Programmable telephone switcher

Details Programmable telephone switcher Programmable telephone switcher

1985-09-20

1987-06-16

Dwyer, James L.

Telephonic communications

Special services

Anonymous party

379386, 379387, 379397, H04M 172

Patent

active

046741151

ABSTRACT:
The programmable telephone screening device routes an incoming call to a selected telephone device, depending on preestablished device priorities and upon access codes dialed by the caller. The device provides call hold, call forwarding and automatic dialing and is capable of testing the telephone utility network to determine DTMF and pulse dialing compatability. The device generates ringer signals for directly energizing the ringer circuits of standard telephone devices.

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TalkTo 109 System Guide by Trillium Telephone Systems Advanced TeleCom Systems Introduces EasyTel.
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