AT&T SYSTEM 25 User Manual page 7

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.
NOTE: You may want to label the seven Group Select
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.)
Using the Selector Console
For example, when placing a call to extension 273:
– Press the 200 Group Select button on the bottom row.
– Press the 73 DXS button.
For example, when placing a call to extension 4519:
—
Press the 4500 Group Select button.
—
Press the 19 DXS button.
Line Selection
If your DTAC automatically selects a line when you lift the
handset to place a call, you have the option "prime line
preference. " If your DTAC automatically selects the ringing line
when you lift the handset to answer a call, you have the option
for "ringing line preference. "
The procedures in this guide assume that you have both ringing
and prime line preference (on a System Access button). If you
don't have these options, you must press the. appropriate line button at
the beginning of most procedures.
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