| 摘要 |
<p>The system uses an extra dialed telephone digit to select between terminals at subscriber's property. In order to be able to install several telephone terminal handsets (2) on the same telephone line, and nevertheless be able to connect to each specific telephone terminal, it is intended that the caller should dial a supplementary number indicating the specific terminal required. Each subscriber terminal (1) is provided with a directing and selection circuit which allows connection to the required destination terminal within the property, according to the selection of the final digit.</p> |
