US PATENT SUBCLASS 379 / 84
.~.~.~ At switching facility (e.g., central office, switchboard)

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

67.1  DF  AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS {13}
68  DF  .~ Dynamic audio signal recording or reproduction {4}
70  DF  .~.~ Call intercept or answering {7}
84.~.~.~ At switching facility (e.g., central office, switchboard)

DEFINITION

Classification: 379/84

At switching facility (e.g., central office, switchboard):

(under subclass 70) Subject matter wherein the component connected to the recorder or reproducer is located at a switching station to which a plurality of telephone circuits are connected.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89.4+, for voice message storage or retrieval at a centralized location.