| 摘要 |
A telephone timing device comprising a synchronous motor driven timer energized by a circuit having at least one switch activated by removing the handset from its cradle to start a time cycle. The telephone owner preselects the talking time by setting the timer which disconnects the telephone at a the predetermined time following an audible few seconds warning time to the telephone users. Once started the circuit completes each time period to reset the telephone for a subsequent talking time period. A locked housing containing the timer surrounds the telephone modular wall outlet jack.
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