ATT System 25 MultiLine Telephone User Guide

Personal Message Waiting
You and another person may have been assigned a button that is
used to signal each other.If so, a waiting message is indicated
by the light next to 
being lit.  This light can be
turned off at either telephone. 
Sending a Personal Signal
1 Do not lift the handset.
2  If the 
light next to the button is off, press it. 
Canceling a Personal Signal
1 Do not lift the handset.
2  If the 
light next to the button is on, press it. 
48 

Pickup
Pickup allows you to answer a call that is ringing at another
telephone.All multiline telephones have this fixed feature.
Picking Up Calls
1  Listen for dial tone, then press
2 Dial the extension number of the ringing telephone.
Picking Up Calls in Your Pickup Group
1 Listen for dial tone.
2  Press 
NOTE: Your System Administrator will notify you if you
have been designated to be in a pickup group. (This is an
assignable feature. )
49 

Placing Calls
You can place calls to people inside your company with
buttons, and you can place
calls to people outside your company with the following buttons: 
lines in this group are busy.
If the light is on, you can activate a
“busy-to-idle” reminder. This reminder lets you know when the
line is no longer busy.
Placing Inside Calls
1 Listen for dial tone.
2  Dial the extension number or press a 
button. 
Placing Outside Calls
Using System or Bridged Access Buttons
1  Press
and listen for dial 
tone....

Placing Calls (Continued)
Using Facility or Pers Line Buttons
1  Press
and listen for dial tone. 
2  Dial the telephone number or press a button. 
Requesting Busy-to-idle Reminder
If all outside lines are busy when you try to place a call, you can
request a Busy-to-Idle reminder and be notified when a line is
available.
1 Do not lift the handset.
2  Press 
Your telephone will ring once when a line is available.
51 

Programming Numbers
You can program numbers into 
buttons, and Personal Speed Dialing codes. While only extension
buttons (maximum of 28 characters) and Personal Speed Dialing
codes (maximum of 25 characters).
Special Characters
You may need to use the “*”and the “ #” when you program
numbers. The “*”is used as either a 1.5 second pause or as an
actual “*”character. The “ # “ may be used as an actual “ # “
character, at the beginning of end-to-end signaling, or at the
beginning of a Speed Dialing code....

Programming Numbers (Continued)
Using # as a Character
If you want to use a“ # “ as an actual character, you must place
two “ # “s in the programmed number.
For example, you may want to program a Call Accountability
feature access code (# # extension), into a 
button. 
You program:  # # # #275
This means:  # #275
Using # with Speed Dialing Codes
When you want to have a Speed Dialing code as part of your
programmednumber, you should use a single “ # “ for the code.
For example, you may want to program the...

Programming Numbers (Continued)
Programming or
Using the Switch
1 Slide the switch on
listen for dial tone.
Removing Numbers
the left side of the telephone to P and
2 If you want to remove a number, go to Step 3.
or
Dial the number you want to program.
3 To indicate on which button this number should be
programmed or removed:
Press
or
Press “ # “ and aPersonal Speed Dialing number (20 - 39).
4 After confirmation tone and dial tone, hang up.
5 Slide the switch back to the midpoint between “ T“ and “P”....

Recall
If a System 25 telephone or outgoing line is busy when you
attempt to place a call, you can pressand hang up. 
When the telephone or outgoing line becomes available, the
system will ring your telephone. For more information about
this feature, see the “Callback” section.
In addition, if your company uses certain Central Office features,
Check with your System Administrator for a description of
available features, access codes, and procedures. 

Repertory Dialing (REP DIAL)
You can program telephone numbers, account codes, or feature
access codes into 
buttons (a maximum of 28
characters).  You can then dial the programmed number by 
pressing 
For instructions on how to program numbers, see the
section for “Programming Numbers”.
Placing Calls
1 Listen for dial tone.
2  Press
56 

Send All Calls
You can use the 
button to send your calls
immediately to coverage.If you do not have coverage, the Send
All Calls feature simply turns off the ringer at your telephone for
most incoming calls.In either case, the light next to the ringing
button blinks until the call is answered, or until the caller hangs
up.
Your System Administrator determines whether or not your
telephone will ring once when a call comes in, to remind you
that this feature is turned on.
Turning On Send All Calls
1 Do...