| 摘要 |
PURPOSE:To allow a receiver side to specify a caller and a call incoming time by opening a password set by the receiver side to a specific party in the communication equipment and varying the password timewise. CONSTITUTION:A recipient stores a 1st password set optionally in advance to a password storage section 1 and a password reception section 2 receives a 2nd password sent in succession to a subscriber number from a caller. A comparator circuit 3 compares the password in the storage section 1 with that in the reception section 2 and an incoming call control section 4 implements incoming control when they are coincident. When dissident, a talking disable message is sent to the caller. Thus, the called party is identified. Thus, the password is varied timewise to identify the called party and the call incoming time. |
