| 摘要 |
The present invention relates to a telephone socket including two terminals for connection to two respective wires of a telephone line. It includes an access restriction device for preventing a telephone communication upon dialing of a number beginning with a forbidden sequence of digits, the restriction device being connected to the two terminals and including a switch connected between a first one of the two terminals and an additional terminal, the two wires of the telephone line being respectively connected to the second one of the two terminals and to the additional terminal.
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