US PATENT SUBCLASS 379 / 188
CALL OR TERMINAL ACCESS ALARM OR CONTROL

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


379 /   HD   TELEPHONIC COMMUNICATIONS

188CALL OR TERMINAL ACCESS ALARM OR CONTROL {5}
189  DF  .~> Fraud or improper use mitigating or indication (e.g., "blue box", "black box")
190  DF  .~> Time out {1}
194  DF  .~> Lockout or double use signalling {1}
196  DF  .~> At switching center {2}
199  DF  .~> At substation {1}

DEFINITION

Classification: 379/188

CALL OR TERMINAL ACCESS ALARM OR CONTROL:

(under the class definition) Subject matter for restricting the calls that may be made from a particular station, or generating an alerting signal in response to a call or call

attempt in violation of a call restriction.