| 摘要 |
<p>The sample utility is an automatic messaging accessory with acoustic actuation for telephones with voice calling capabilities, intended to implement remotely controllable alarming and/or remote supervision systems, whose input may be connected to control signal transferring channels, and output is capable of broadcasting starting signals, where a controllable switching unit is installed between the output and the input, and an additional acoustic sound generator suitable for the storage of automatically transferable acoustic signals.</p> |
