| 摘要 |
PROBLEM TO BE SOLVED: To solve the current problem that a conventional phone provided with convenient functions has sometimes suffered from troublesome phone calls independently of phone subscribers and of whether or not phone calls adopt a caller notice system. SOLUTION: The phone 9 is provided that is formed by integrating a phone 7 adaptive to a number display system with a collation confirmation coincidence circuit 8. The phone 9 compares its own registration telephone numbers A with a telephone number B of an opposite party and makes a speech only when they are coincident and automatically disconnects the line in other cases without ringing a ring tone.
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