METHOD FOR NOTIFYING A CALLING SUBSCRIBER THAT A CALLED SUBSCRIBER IS NOT IN A BUSY STATE, ESPECIALLY CONCERNED WITH TRANSMITTING A NOTIFICATION TO A CALLING SUBSCRIBER WHEN A CALLED SUBSCRIBER GETS TO AN ACTIVE STATE

摘要

PURPOSE: A method for notifying a calling subscriber that a called subscriber is not in a busy state is provided to inform a calling subscriber of a call-available time with a called subscriber when the called subscriber is busy or not in an active state. CONSTITUTION: In case that a calling subscriber calls a called subscriber when the called subscriber is in a busy state or not in an active sate(52,54), a system sends an announcement to the calling subscriber so that he can select whether he wants to be notified when the called subscriber is in an active(56). If it is confirmed that the calling subscriber wants to be notified, the system checks the state of the called subscriber periodically(58). If the called subscriber gets to an available state, the system calls the called subscriber, notifying the calling subscriber that the called subscriber is available(66,68).