TRAVELLING LOG FOR INTELLIGENT NETWORK TESTING

摘要

In an Intelligent Network (IN) (10) a testing capability is provided at a service switching point (SSP) (12). The testing capability comprises a test call (34) initiated from the SSP to a desired destination (14) within the network. The testing capability uses the Common Channel Signaling Number 7 (CCS7) network protocol. It uses the CCS7 TCAP (Transaction Capability Control Park) for IN queries packages (50) and the CCS7 ISDN User Part (ISUP) (40) for call set up messages. The testing capability defines a portion on the (TCAP) and (ISUP) to log (TLog) the network devices transversed in the IN call. The test call with the log portion appended to TCAP (and ISUP) messages travels through the network and collects data (208, 210) in the log portion from each node on the test call path. The test call with the travelling log (TLog) helps the maintenance personnel isolate troubles and faults in the network without having to monitor each node (or office) on the route of a troubled message path.