| 摘要 |
PROBLEM TO BE SOLVED: To easily re-dial a communication party registered in communication party conversation termination notification service even when a user does not have a grasp of the proceeding of the service. SOLUTION: When receiving a request for re-dialing by operation of a service button, a control circuit 1 confirms the state of response to an SIR incoming call as the proceeding of the service. If a telephone set is in the state of response to SIR incoming call, a re-dialing instruction dial '159P3' for instructing re-dialing from the network side is transmitted, and if the telephone set is not in the state of response to SIR incoming call, the communication party's dial previously stored in a memory 11 is transmitted.
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