Abstract: A method of processing an intelligent network service call in a service switching point (SSP) which has a DTMF processor and is connected to the originating local exchange/transit exchange to provide an intelligent network service. The SSP receives a digit from the other exchange in a R2MFC signalling mode to process a trunk signal from the other exchange upon generation of a trunk line seizure request from the other exchange. The SSP analyzes the received digit to check whether a call from the other exchange is a normal call or an intelligent network service call in which subscriber's information must be received in the middle of the service. If the call from the other exchange is the intelligent network service call, the SSP collects a calling number and a calling category from the other exchange, releases the R2MFC signalling mode and forms a speech path with the other exchange to communicate directly with a service user.

Abstract: The present invention interrupts the service after the entire preparation process, and executes testing process after interconnecting the line to the test equipment, and recovers the line as service possible as soon as the test is ended. As a result, the minimum amount of service time is killed by the test. On the test by line maintenance personnel, the present invention reports the personnel about the status of the line by an instant test just after doing hook-on following the ring sent from the exchanger in a specified time. So, the line maintenance personnel can verify the status of the line at instantaneously.