CONTROL APPARATUS AND METHOD OF EMERGENCY PHONES WITH RESTRICT CALL

摘要

PURPOSE: A plurality of communication restriction emergency telephone control devices and a control method for preventing the use of a communication line are provided to easily manage the emergency telephone on one communication line. CONSTITUTION: A controller(110) detects an alarming signal by detecting unauthorized communication. The controller records an emergency communications phone number. An audio unit(160) decodes an audio stored in a memory. An interphone unit(130) comprises one or more emergency telephones. The emergency telephone comprises the designated button designating a command signal for applying the emergency telephone.