Patent ID: 6026147
Filing Date: 2000-02-15
Classification: H04M

Abstract:
A call supervisory system in an exchange comprising:a trunk card device connected to a trunk card of an external system via a control trunk line;device control unit, as a lower level processor, for controlling the trunk card device;a man machine interface unit matched with the external system for switching data and managing a password;a call trace and path setup control unit for controlling the call supervisory system according to demands of the external system received through the man machine interface unit and informing a result of the relevant control to the external system via the man machine interface unit;a number translation unit for translating and managing an exchange number according to the control of the call trace and path setup control unit when processing calls;a call trace and path setup unit for setting up call supervision and a call path according to the control of the call trace and path setup control unit;a call management unit for performing a call process function of the exchange, sending a call supervision control flag to the number translation unit, and informing occurrence of call process events to the call trace and path setup unit;a fault control unit for controlling fault in the call supervisory system and informing contents of the fault to the external system via the man machine interface unit; anda telephony device maintenance unit for controlling maintenance and repair of speech path equipment according to the control of the fault control unit.