| 摘要 |
<p>The circuitry of a standard key telephone system is modified to serve as a call distributing system. A gate circuit, associated with the key telephone line circuits, is arranged to establish a first timed interval during which all incoming connections to the station are processed in a manner such that the associated line lamp at the key telephone station provides a first visual indication. The line lamps associated with incoming connections arriving at the conclusion of the first timed interval are arranged to provide a second mode distinctive visual indication. When all of the first mode lines are answered, the second mode lines are switched to the first mode and the associated line lamps are changed from second mode distinctive flashing to first mode flashing. When any incoming connection remains unanswered for a predetermined interval, a special announcement is returned over the associated incoming line.</p> |
