| 摘要 |
<p>The present invention relates to an automatic dialler for telephone numbers. This automatic dialler comprises a control unit, a memory unit, a keyboard unit, a display unit, units for voltage feed and regulation, units for amplification and automatic regulation of signal level, a signal shaping unit and a unit for connection with a telephone line. At least the memory unit is housed in a removable portion that plugs into a fixed portion containing the other units.</p> |
