AT&T SYSTEM 25 User Manual page 7

Loop Buttons
Voice communications paths between your console and the
System 25 are called loops. Your console receives calls one at a
time; if you are busy with a call, other incoming calls will wait in
line (in queue) until you are ready to respond. If there are two
attendants they share the same queue.
Your SLAC has five (LOOP) buttons that can be used to place
and receive calls. These buttons give you access to outside lines
and system features.
Automatic Loop Selection
When an incoming call rings, lifting the handset (going off-hook)
automatically connects you to the caller. If your console is idle
and you want to place a call, lifting the handset generates a dial
tone for your call at one of the (LOOP) buttons.
Occasionally, you may have to press a (LOOP) button when you
answer or date a call. The console procedures will Provide
instructions when this is necessary.
Direct Extension Selector Console
The Selector Console allows you to call an inside number by
pressing only one or two buttons instead of dialing all the digits.
These buttons are identified and described below.
GROUP SELECTION BUTTONS (the first seven buttons located
on the bottom row)
Used for selecting the "hundreds group" of each extension
number. The last button on the right is used for testing the
console.
You may want to label the seven Group Select
NOTE:
buttons. The plastic caps can be pulled off temporarily
to insert labels.
DIRECT EXTENSION SELECTION (DXS) BUTTONS (located
directly above the Group Select buttons)
Used for selecting specific extension numbers from the hundreds
group. (The numbering is fixed from 00 to 99.)
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