ATT System 25 Single Line Telephone User Guide

							dequeueing tonethree short tones indicating that the call for
which you requested Callback can now be
completed.
FPDC(Floating Personal Dial Code) an extension
number associated with a person, but not a
particular telephone.This feature provides
the convenience of receiving calls at any
available telephone.
fast busy tonerepeating on/off tone indicating that the
dialed number or access code was busy,
restricted, misdialed, or the trunk group
was busy.
feature access
code
fixed feature
following
forwarding
hold
inside call
leave word
calling
sequence of characters (digits, “*”, or “ # “)
that allows you to access System 25
features.
standard feature that is available to every
telephone.
features that allow you to redirect your
incoming calls to another telephone.
feature that temporarily suspends a call.
call between two or more System 25
telephones.It is signalled by one long ring.
feature that allows you to notify a person at
a
busy or unanswered telephone that you
have called. To use this feature, there must
be a VOICE POWER Voice Message System
connected to your System 25.
message waitingfeature that allows you to turn on and off
the message light on telephones in the
system.
night servicefeature that allows you to answer calls
when the attendant is not available.
off-hooka telephone is off-hook when the handset
has been removed from its cradle, releasing
the switchhook button.
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							on-hook
PDC
a telephone is on-hook when the handset is
in its cradle, depressing the switchhook
button.
outside callcall between a System 25 telephone and a
telephone not connected to System 25.
Outside calls are made over Central Office
or other trunks and are signalled by two
short rings.
outside linea trunk (line) to the Central Office or other
system. Outside lines may be accessed by
dialing an access code.
(Personal Dial Code) extension number that
is assigned to an individual, and is normally
paging
park
pickup
program
associated with the telephone at the
individual’s desk.
feature that allows you to access paging
equipment from System 25 telephones.
feature like hold except that it allows you
answer the call from any telephone.
to
feature that allows you to answer a call that
is ringing at another telephone.
ability to store a telephone number or
account code so you can access it by dialing
a code.
queueing tonefive short tones indicating that your request
for callback has been confirmed.
recallbutton on some telephones that may be
pressed instead of the switchhook.
ringback tonerepeating on/off tone indicating that the
number you dialed is ringing.
special ringbackone long tone followed by one short, dull
tonetone indicating that the person you dialed is
busy and has Call Waiting.
29 
						

							speed dialing
switchhook
system
administrator
transfer
trunk
feature that allows you to place a call or
enter an account code by dialing “ #” and a
2- or 3-digit code.Individual telephones
may be assigned 2-digit Personal Speed
Dialing codes, which you can program. All
3-digit System Speed Dialing codes are
assigned by the System Administrator and
can be used at all telephones.
button depressed by the handset when the
telephone is not in use.
person responsible for assigning features
and overseeing System 25 operation.
feature that allows you to connect the
person you are talking with to another
person, then drop out of the conversation.
a telecommunications channel between two
switching systems. (See outside line.)
30 
						

							AT&T System 25
QUICK REFERENCE CARD
Single-Line Telephone
FEATURE ACCESS CODES
I
FEATUREDESCRIPTIONCODE
I1
Account Codeto enter an Account Code* 0 Code
Call Accountabilityto charge call to correct extension## Ext.
to request callback for a busy ext./line#60
Callbackto cancel callback#61
,
Call Waitingto answer call waiting*9
to leave your DGC group*4
Direct Group Callingto return to your DGC group*6
Ito sign in extension** Ext. Ext.
Followingtto sign out extensionI** Ext. O(at another extension)“to sign out all extensions** 0
to send your calls to another extension#70 Ext.
Forwardingto send your calls to a remote numberI#70 number(from your extension)to cancel forwarding** Ext. Ext.
Leave Word Callingto leave message#92 Ext.
to turn on message light#90 Ext.
Message Waitingto turn off message light#91 Ext.
to parka call*5
Parkto answer a parked call* 8 Ext. that parked call
to pickup call ringing in your group* 
70Pickupto pick up call ringing outside group* 7 Ext.m
ProgrammingIto program a Personal Speed Dialing code
Speed DialingI
to dial a programmed number
(20-39, 100-189) Code
(See Dial Code list on other side.) 
						

							QUICK REFERENCE CARD
Single-Line Telephone
PERSONAL SPEED DIALING NUMBERS
SYSTEM SPEED DIALING NUMBERS
CODETELEPHONE NUMBERCODE
USE
#20
#21
#22,
#23,
,
#24
#25
#26
#27
#28
#29
#30
#31
#32
#33
#34
#35
#36
#37
#36
#39
DIALING CODES
 CODE DESCRIPTION
IYour Extension
Your Data Terminal
 Attendant
Night Service access code
 Paging access code
FACILITY ACCESS CODES
CODEUSE
ACCOUNT CODES
 CODE USEI
(See Features list on other side.)