AT&T System 85 - Manual (Page 111)

CHAPTER 5. REFERENCE CONSOLE ILLUSTRATION AND LEGEND
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Direct Extension Selection (DXS) Buttons With Busy Light Field (BLF)
Used to select extension numbers. The lights show the busy/idle status of the
extension number. A light in the BLF that is on indicates a busy line on a single-line
voice terminal. An extension number assigned to a multi-appearance voice terminal
may be active on one call appearance of the line but idle on another.
Hundreds Group Select Buttons
Used to select a hundreds group (first two digits of an extension number).
Handset/Headset Jack
Used to plug in the handset/headset. Provided on both sides of the console.
Test Reminder Tone Switch
Used to test console lights and turn off audible signals.
Volume Control Wheel
Used to adjust the level of audible signals on the console.
Receive Level Control Wheel
Used to adjust the volume in the earpiece as an aid for hearing-impaired operators.
Storage Area
Contains a plastic card for your use.
HOLD Light
When on, indicates that you have put a call on the associated loop on
When flashing, reminds you that a call has been held for 30 seconds.
ATND (Attendant) Light
When on, indicates that you are active on the loop.
hold.
When flashing, indicates that an incoming call is on the loop waiting to be answered.
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