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Idaho State University

Glossary

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Lockout
  • In a telephone circuit controlled by two voice-operated devices, the inability of one or both users to get through, either because of excessive local circuit noise or because of continuous speech from either or both users. See also head-on collision.
  • In mobile communications, an arrangement of control circuits whereby only one receiver can feed the system at a time. Synonym receiver lockout system.
  • In telephone systems, treatment of a user's line or trunk that is in trouble or in a permanent off-hook condition, by automatically disconnecting the line from the switching equipment.
  • In public telephone systems, a process that denies an attendant or other users the ability to reenter an established connection. See also call spill-over, head-on collision, not-ready condition.
  • An arrangement for restricting access to use of all, or part of, a computer system. (FP) (ISO) Synonym protection.