| 摘要 |
PURPOSE: A redialing method in an ISDN terminal is provided to store more than two phone numbers in an identical address in order to automatically dial another stored phone number when a busy signal is received from the other side. CONSTITUTION: If an abbreviated dial signal to call a specific person is inputted from a keypad part, a control part reads a phone number stored in a relevant address from a memory part and sends it to an ISDN through an interface part after executing the first or second layer protocol(S201). The control part analyzes a signal received from the other side terminal through the interface part. If a busy tone or a release signal is detected(S202), the control part analyzes the same address and judges whether other phone numbers are stored(S203). In case that other phone numbers are stored in the same address, the control part reads a new phone number, automatically dials the phone number, and sends it to the ISDN through the interface part(S204,S205).
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