SUCCESSIVE CALL PROVIDING METHOD IN INTELLIGENT NETWORK PHONE CARD SERVICE

摘要

PURPOSE: A successive call providing method in an intelligent network phone card service is provided to shorten a service providing time in initiating a new call for a successive call connection by providing a successive call by using an initially inputted signal and a specific button of a phone terminal in case that a successive call connection service is requested for the next call connection after a previously connected call is terminated. CONSTITUTION: When a call termination procedure is requested by a called party, a service exchange receives an SUS(Suspend) message and an REL(Release) message as an interchange signaling and searches a specific flag value set for an originating call which has been initially inputted by using a KT card(S100). The service exchange determines whether the searched specific flag value and a flag value set for the originating call are identical to each other(S110) by using the KT card. If it is a KT card call, the service exchange increases a successive call count and interworks a DTMFR(Dual Tone Multi Frequency Receiver) which receives a DTMF signal to collect digits from the calling part(S120). The service exchange determines whether the successive call count exceeds a pre-set number by increasing the number of the successive call count one by one(S130). If the successive call count does not exceeds the pre-set number, the service exchange connects an announcement channel for a successive call connection and outputs it to the calling party(S140). The service exchange determines whether the calling party has requested a successive call by a '#' digit button inputted from the calling party(S150). If the digit '#' is received, the service exchange connects an announcement channel for receiving a new destination call(S160). When the first digit of the destination call is inputted from the calling party to the service exchange(S170), as a new destination call is completely, the DTMFR connection is released. A primitive including the newly inputted destination call is generated and transmitted to a service controller and a destination call translation is requested to be performed(S180). A corresponding switch connection is requested from the service controller to connect the call(S190).