SERVICE SWITCHING POINT FOR EMERGENCY CALL PROCESSING, INTELLIGENT SERVICE SYSTEM USING THE SERVICE SWITCHING POINT AND METHOD FOR PROVIDING INTELLIGENT SERVICE

摘要

An intelligent network service switch for an urgent call in an intelligent network service failure in which the SSP(Service Switching Point) accomplishes the function of the SCP, and the intelligent network service system and the method for providing intelligent network using the same are provided to perform the function of SCP by SSP by using information stored in SSP. Failure occurs in the signal network between SCP(6) and SSP(10). SSP is unable to be normally provided the actual called number from SCP. SSP enters a general call processing mode. An IDP(initial detection point) message transfer to SCP is discontinued. The actual called number corresponding to the general directory number received from local exchanger is searched in the called number storage. By using the searched room called number, the call connection is performed. SSP periodically transmits the state check message to SCP. The intelligent network service can be provided again normally from SCP.