| 摘要 |
PURPOSE: An additional service information management method is provided to manage collectively a call processing information related to the additional service of a subscriber in a common library block, thereby minimizing the time and effort of call processing blocks according to the conference and implementation of the interface for defining a link between blocks when changing the additional service or adding a new call. CONSTITUTION: While talking over the telephone between an existing call processing block and a master call processing block, in case of connecting a communication line between the call processing block and a new call processing block of any host for providing an additional service, if the master processing block demands a call waiting of the existing call processing block(S21). The existing call processing block processes the call waiting. Thereafter, the master call processing block demands a destination occupation request for requesting an additional service to a new destination call processing block(S22). When processing the destination occupation request at the corresponding new call processing block(S23), the new call processing block transmits switch information on an additional service communication line to the master call processing block(S24). The master call processing block stores the switch information for providing an additional service(S25). Besides the switching information, if the existing call processing block information is also stored(S26), the existing communication line is processed as a call waiting and connected to the new communication line(S27) and also the switch is connected(S28). Thereafter, the new call processing block and the master call processing block are communicated with each other(S29).
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