ATT System 25 MultiLine Telephone User Guide

Data Calls
Placed from Your Telephone
If your System Administrator has assigned a 
button to 
your telephone, you can use it to place data calls for your
associated data terminal.
Placing a Data Call
1
2
3
4
5
6
7Turn on your data terminal.
Lift the handset on the associated telephone and listen for
dial tone.
If your data call is an inside call, dial the DDC and go to
Step 4.
or
If your data call is an outside call, press 
Dial the data number..
Listen for a high pitched answer tone and complete any...

Direct Group Calling (DGC)
Your System Administrator will advise you if you have been
assigned as a member of a Direct Group Calling (DGC) group.
Calls that go to these groups are distributed among its members
for the purpose of answering incoming group associated calls.
Leaving the Group
1  Listen for dial tone, then press
2  Listen for confirmation tone and hang up. 
Returning to the Group 
1  Listen for dial tone, the press
2 Listen for confirmation tone and hang up.
19 

Direct Station Selection (DSS)
The DSS buttons allow you to make a call without dialing the
digits. The number is stored in the memory system. There are
two kinds of DSS buttons: Fixed and Flexible. The fixed DSS
buttons,
consist of extension numbers or access codes
programmed the System Administrator. Flexible DSS
buttons,
allow you to program your own frequently 
called extensions and most other System 25 access codes. (You
cannot program Pooled Facility Access codes on a DSS button.)
For instructions...

Directory
If your telephone has an attached display and your System
Administrator has set up a system directory, you can use the
display to obtain extension numbers, data numbers, or DGC
access codes for people connected to your System 25.
With this display feature, you can access the name and number
of a specific person.
Start the directory search by dialing the
first letter(s) of the person’s last name. Use the following
buttons for dialing those letters and characters that do not
appear on the dial...

Directory (Continued)
3 Press # .
The system will provide you with the first name in the directory that
matches the search combination that you specified.
At the beginning of each entry, you will will see the letter “ D“ to remind
you that you are using the Directory feature.
4  To see the next matched entry, pressYou may
need to pressseveral times before the correct
name appears. 
NOTE:  If you appear to be far away from your goal, you may 
enter additional letters to the persons name.  (Be sure that...

Directory (Continued)
Placing Directory Calls
When the display shows the name and number of the person
you want to call, press
The system will automatically dial the number presently appearing on your
display.  If you handset is on-hook, your speakerphone will turn on. 
Exiting from the Directory
When you do one of the following, you automatically deactivate
the Directory feature:
Press
again.
Allow the display to be idle for 15 seconds.
Hang up the handset after being off-hook, or lift the handset
after...

Display
Some telephones come with a 16-character display. If your
telephone has an attached display, use the following directions
and sample screens to help youuse the display more efficiently.
Your display can be used in the following ways:
n
n
n
n
Handling calls more easily
Checking the time and date
Setting the alarm, time, day, date, and timer
Programming buttons or speed dialing codes from your
telephone
Using the system directory to check a specific person’s
number
Checking the feature or numbers...

Display (Continued)
The following is an example of a double-screen display, in which
the telephone number is continued on Screen 2.
Using the Display
Usually, you use the display to check the name/extension of the
caller (internal calls) or the type of outside line on which the call
is coming in (outside calls).
Inside Calls
When you place or receive calls within the system, the display
shows you the extension number and the name (if the System
Administrator has administered this option) of the person...

Display (Continued)
Conferencing
The display for a conference call is slightly different from the
display for an inside or outside call. In the last two positions on
the display are the display symbol associated with conference
calls, “A”,and the number of conferees currently in the
conference. The following example shows a conference call
being arranged:
You receive a call from R. Cameron, announcing you will be
added to a call he is on with another person.
Cameron includes you in the conference. The...

Display (Continued)
DGC Group
If you are a member of a Direct Group Calling (DGC) group, you
can view the number of calls waiting to be handled by the
group. In the last position of Screen 1, you will see a number
from O through 9, indicating the number of calls waiting for the
DGC group. If there are more than 9 calls in the queue, you will
see a !.
In the following example, there are three calls waiting
for the group.
Signaling
If a person is signaling you with the Signaling feature, you will
see the...