WIRELESS COMMUNICATION ADAPTOR AND ITS REMOTE SUPERVISORY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a remote supervisory system that always supervises quality of communication by a wireless communication adaptor by which a maintenance center can quickly grasp the occurrence of trouble and its cause. SOLUTION: The wireless communication adaptor ADA connects key telephone sets 5 to a general wired communication line REG and connects the key telephone sets 5 to a mobile phone 3 to attain a speech between an external telephone set and the key telephone set 5 through the intervention of the mobile phone 3. The wireless communication adaptor is provided with a supervisory means that always supervises an operating state of the mobile phone 3 and with a transmission means by which an operator can recognize an event detected by the supervisory means at other place.