Power line telephone communications system having on hook digita

Telephonic communications – Private or single line system – With call addressing

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Details

379170, 379169, 379 65, 379 66, 34031001, 34031007, H04M 160, H04M 900, H04M 1104

Patent

active

057087016

ABSTRACT:
A power line telephone communications system having an ON HOOK digital voiceband messaging feature by which selected information contained in an incoming call to a telephone is received prior tc the telephone being lifted off its hook. The incoming ring signals, ON HOOK digital voiceband messaging and information signals are conducted by a base unit to the power line for transmission to an extension unit to which a telephone is connected.

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patent: 5533101 (1996-07-01), Miyagawa

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