Basic call control restoration system

Abstract

PURPOSE: To realize the system as series of basic call control processing in basic call control and to keep the independence between the basic call control and an additional service. CONSTITUTION: The system is provided with a start means in which a basic call control execution start point 8 and a basic call control event wait point 7 provided optionally in series of basic call control processing are defined and which starts basic call control from the optional basic call control execution start point 8 designated by the additional service, a means bringing the basic call control to an event wait state from the optional basic call control event wait point 7, a start means starting the basic call control just after an additional service start check pint 6 starting the additional service including in the case of no additional service start, and a means replacing the input event to the basic call control with a new event generated at the additional service side when the basic call control is started. COPYRIGHT: (C)1992,JPO&Japio

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