Telephone exchange system

Telephonic communications – Audio message storage – retrieval – or synthesis

Patent

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Details

379 70, 379102, 379156, H04M 164

Patent

active

055861725

ABSTRACT:
A telephone exchange system accommodates a plurality of central office lines and a plurality of telephones and records a telephonic communication in a recording area shared by the plurality of telephones. When predetermined conditions are satisfied, the recording is played back or transferred. The shared recording area can be utilized effectively by erasing a recording after it has been transferred, and by detecting the presence of a voice during a telephonic communication and starting and stopping the recording operation based upon the results of detection. The time at which a recording has been made can be comprehended in the form of a voice when the recording is played back.

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The Bell System Technical Journal, vol. 61, No. 5, May/Jun. 1982, pp. 863-883, American Telephone and Telegraph Co., Murray Hill, N.J., US; G. W. Gates et al.: "1A Voice storage system: Software".
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