US PATENT SUBCLASS 379 / 134
.~.~ At central station

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

111  DF  WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER) {3}
133  DF  .~ Call traffic recording or monitoring {2}
134.~.~ At central station {4}
135  DF  .~.~.~> With hardcopy record generation (e.g., ticket printing)
136  DF  .~.~.~> With display
137  DF  .~.~.~> Trunk usage (e.g., peg count) {1}
139  DF  .~.~.~> Counting the number of completed connections

DEFINITION

Classification: 379/134

At central station:

(under subclass 133) Subject matter wherein the determination is made at a switching station spaced remotely from the user terminal.