US PATENT SUBCLASS 379 / 115
.~.~ Interexchange operations

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}
114  DF  .~ Call charge metering or monitoring {5}
115.~.~ Interexchange operations {1}
116  DF  .~.~.~> Hardcopy record generating

DEFINITION

Classification: 379/115

Interexchange operations:

(under subclass 114) Subject matter wherein the charge determination is made at one exchange and then transmitted to another related to the calling station.

(1) Note. Included herein is "CAMA" - Centralized Automatic Message Accounting where the accounting for several central exchanges is handled at only one office.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219+, for interexchange switching or signalling.