Introduction
7-5
Outside Calls are announced by a tone signal repeated every 3.2
seconds. The corresponding outside line indicator flashes slowly.
Intercom Calls can be tone ringing or voice announce. If it is voice
announced, the receiving station receives two bursts of tone prior to the
announcement. If it is a tone ringing call, the receiving station hears a
tone ring every 2.4 seconds.
Figure 7-1: Attendant Digital Display Telephone