| 摘要 |
<p>A switched telephone network responsive to a plurality of predetermined signals received over a first predetermined telephone line for switching the connection of said first predetermined telephone line in response thereto; a telephone connected to said first predetermined telephone line for providing signals to said switched telephone network; and an automatic dialing unit responsive to signals applied to an input terminal thereof for providing signals at an output terminal thereof; said input terminal and said output terminal each connected to said first predetermined telephone line so that said signals applied to said switched telephone network by said telephone are also provided to said input terminal of said automatic dialing unit.</p> |
