US PATENT SUBCLASS 379 / 193
.~.~.~ Of specific equipment

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

188  DF  CALL OR TERMINAL ACCESS ALARM OR CONTROL {5}
190  DF  .~ Time out {1}
191  DF  .~.~ At switching center {2}
193.~.~.~ Of specific equipment

DEFINITION

Classification: 379/193

Of specific equipment:

(under subclass 191) Subject matter wherein the status of particular telephone system equipment is determined for the status control or alerting function.