| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for providing a guide map, a guide voice, etc., to a portable telephone set, etc., by utilizing a public telephone set, etc., installed at a street. SOLUTION: In this guide information providing system, positional information including the installing place and the installing direction of the public telephone set 1, etc., installed at the street, etc., and the telephone number of the portable telephone set carried by the user of the set 1 are given to a guide center 3, which generates guide information to a target place from a present place where the set 1 is installed by utilizing the precise positional information of the set 1 and transmits it to the set 2 carried by the user.
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