US PATENT SUBCLASS 379 / 120
.~.~.~ With line identification or class of service determination

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}
119  DF  .~.~ Hardcopy record generating (e.g., ticket printing) {1}
120.~.~.~ With line identification or class of service determination

DEFINITION

Classification: 379/120

With line identification or class of service determination:

(under subclass 119) Subject matter which ascertains the identity, or service entitlement, of a calling line.