| 摘要 |
PROBLEM TO BE SOLVED: To make a telephone call without uttering voice in a condition incapable of uttering the voice. SOLUTION: For instance, in the condition incapable of uttering the voice in a train or in a movie theater or the like, at the time of getting the telephone call, 'I can not talk now in the train. Please leave a message. I will get back to you.', for instance, is inputted in a key input part 11. A voice synthesis part 12 converts the character information to voice signals and they are transmitted from a telephone function part 13 through a telephone line to this telephone system of an opposite party.
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