| 摘要 |
The present invention relates to a monitoring device for telephone apparatus, characterised in that it is coupled with or integrated with a telephone apparatus or an interactive terminal and is linked to the complementary apparatus, interactive terminal or telephone apparatus, and in that it includes a means 1 for detecting the state of the telephone apparatus and of the numbering, and a means 2 for displaying the numbers dialled, the duration of transmission and the cost of the transmission. <IMAGE>
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