AT T System 25 User Manual

555-540-711  
Issue 1  
1989  
AT&T System 25  
Cordless Telephone  
User Guide  
©1989 AT&T  
All Rights Reserved  
Printed in USA  
TO ORDER COPIES OF THIS DOCUMENT REFER TO DOCUMENT  
NUMBER 555-540-711.  
Contact: Your AT&T Sales Representative, or  
Call: 800-432-6600, Monday to Friday between 7:30 am  
and 6:00 pm EST.  
In Canada dial 800-255-1242, or  
Write: AT&T Customer Information Center  
285 North Franklin Road  
P.O. Box 19901  
Indianapolis, Indiana 46219  
Every effort was made to ensure that the information in this document  
was complete and accurate at the time of printing. However, this  
information is subject to change. This document will be reissued  
periodically to incorporate changes.  
Cordless Telephone User Guide  
Prepared by the  
Technical Publications Group  
Introduction  
This guide lists all of the features available to you from AT&T  
System 25 through the cordless telephone and provides basic  
instructions on how to use your cordless telephone to program  
those features. For a full description of these features, and step-  
by-step instructions on how to implement them, see the AT&T  
System 25 Multiline Telephone User Guide.  
Your cordless telephone is ready to use as soon as it is connected  
to the System 25. You can still make and receive calls while you  
are learning to use the System 25 features.  
NOTE: To ensure optimal operation of your cordless phone, you  
should make certain that the environmental guides specified for  
this set have been met.  
1
 
Cordless Telephone Controls  
The following figures show the controls on the handset and base  
unit of the cordless telephone. See the owners manual that  
accompanied your set for more detailed information on how to  
use these controls.  
Base Unit Controls  
6 Channel Indicator  
7 Mode  
8 T/ P Switch  
1 Retractable Antenna  
2 Power Cord with AC Adapter  
3 Handset Hook  
9 Ringer Volume  
10 Message Light  
4 Directory Card  
5 Battery Contacts  
2
 
Handset Controls  
Transfer  
Hold  
10 Dial Pad  
11 Channel  
8
9
Antennas  
On/ Off  
1
2
3
4
5
6
7
Message Light  
Low Battery Light  
Line Card Label  
Line/ Feature Buttons  
Status  
Number Card  
Battery Contacts  
12  
13  
3
Lights  
Your cordless telephone uses red LEDs (light emitting diodes) to  
indicate the call status for each line. These LEDs normally  
remain off. They become lit only when you take some action,  
such as pressing STATUS, ON/ OFF, a feature button, or lifting  
the handset from the base unit. The LEDs flash or blink to  
indicate different call states, as described below.  
A steady light indicates the line or feature in use.  
A slow flashing light indicates an incoming call.  
A fast blinking light indicates a call on hold. (An  
intermittent blinking green light indicates a call  
held temporarily while being transferred or  
conference. )  
Ringing Tones  
System 25 signals you with four distinctive rings. The rings and  
their descriptions are listed below.  
INSIDE CALL IIIIIIIIIIIIIIIIIIIIIIIIIIIIII (one long ring)  
Your call is from a person inside your company.  
OUTSIDE CALL IIIIIII IIIIIII (two short rings)  
Your call is from the attendant or someone outside your  
company.  
ABBREVIATED ALERT Ill (one short burst of ringing)  
This can indicate a call on another line; a busy-to-idle reminder;  
a manual signal; or that your telephone is in program mode.  
PRIORITY RING II II IIIIIIIIIIIIIIII (two short rings and one long ring)  
You are being alerted that your request for Callback can now be  
completed; or a call is being set up remotely for your phone via  
a data feature known as Third-Party Call Setup.  
4
   
Handset Tones  
System 25 signals you with tones that are heard through the  
handset. The tones and their descriptions are listed below.  
DIAL TONE lllllllllllllllllllllllllllllllllllIllllllllllllllll (a continuous steady tone)  
You can dial.  
II II (three short tones)  
CONFIRMATION TONE II  
Your action has been accepted.  
RINGBACK TONE IIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIII(repeating on/ off tone)  
The number you dialed is ringing.  
SPECIAL RINGBACK TONE IIIIIIIIIIIIIIIIIIIIIIIIIIII II (one long tone and  
one short, dull tone)  
The person you dialed is busy, and has been notified of Call  
Waiting.  
(repeating on/ off tone)  
BUSY TONE IIIII IIIII IIIII  
The number you dialed is busy.  
(fast repeating on/ off tone)  
FAST BUSY TONE III III III III  
The number you dialed was busy, misdialed, or restricted.  
CALL WAITING TONE (short tone(s) heard during a call)  
III  
(the waiting call is an inside call)  
Ill Ill (the waiting call is an outside call)  
You have a call waiting to be answered.  
QUEUEIN G TON E II II II II II (five short tones)  
Your request for a callback has been confirmed.  
DEQUEUEING TONE II II II (three short tones)  
The extension or outside line that you requested for callback is  
now available.  
5
 
Data Dial Code (DDC)  
When your System 25 was installed, Data Dial Codes (DDCs)  
were assigned to data terminals. If you have a data terminal  
associated with your System 25, you will receive separate  
information regarding its use.  
Personal Dial Code (PDC)  
Personal Dial Codes (PDCs) were assigned to telephones. In  
most cases, your PDC is your extension number. If a telephone  
is shared by two or more people, each person may have been  
assigned his or her own “floating” extension number (FPDC).  
Additional Information  
See your System Administrator if you have any questions or  
would like additional information about your System 25 features.  
6
System 25 Features  
The cordless telephone implements nearly all the features  
normally available on a multiline telephone. (Since the cordless  
telephone does not have a speakerphone, display, or certain  
function buttons, some features are unavailable.) See the AT&T  
System 25 Multiline User Guide for a full description of features,  
and detailed procedures on how to implement them.  
Your AT&T System 25 has two types of features: fixed and  
assignable. A fixed feature is one that is provided on all  
multiline telephones. An assignable feature is not provided  
It must be “assigned” by your  
automatically on all phones.  
System Administrator. Check with your System Administrator  
as to which features have been assigned to you.  
The tables starting on the following page list all the features that  
can be implemented on the cordless telephone and indicate  
whether they are fixed or assignable features. Also, due to  
minor design differences between the cordless telephone and  
other multiline telephones, there are small operational  
differences regarding the use of certain features on the cordless  
Please note the comments for each feature where  
telephone.  
given.  
NOTE: Check the tables carefully, as not all multiline features  
are accessible on your cordless phone.  
7
 
SYSTEM 25 CORDLESS TELEPHONE FEATURES  
Feature  
Assignable  
Fixed  
Comments  
Account Code Entry  
Automatic Intercom  
Press  
ON/ OFF,  
then press  
status to see  
current LED  
states  
Bridged Access  
Press  
STATUS to  
see current  
LED states  
Call Accountability  
Call Waiting  
Callback  
Press  
Coverage  
STATUS to  
see current  
LED states  
Data Calls  
Direct Group Calling  
Direct Station Selection  
Exclusion  
Following  
Forwarding  
Hold  
Last Number Dialed  
Press  
ON/ OFF  
first  
Leave Word Calling  
Message Waiting  
(Con tin u ed )  
8
SYSTEM 25 CORDLESS TELEPHONE FEATURES  
Feature  
Night Service  
Fixed  
Assignable  
Comments  
Paging  
Park  
Personal Message Waiting  
Pickup  
Placing Calls  
Programming Numbers  
Press  
ON/ OFF  
first to use  
Personal  
Speed Dial  
Repertory Dialing  
Send All Calls  
Select Single  
Ring  
Reminder  
Signaling  
Speed Dialing  
Testing Your Telephone  
T/ P Switch  
is located on  
base unit  
Transfer  
9
Programming System 25 Features  
Although the cordless telephone has five (5) programmable  
buttons, it must be administered as a 10-button multiline  
telephone (set 303). This is because the cordless telephone  
supports the message waiting feature, but the 5-button telephone  
does not.  
Considerations  
Since the cordless telephone does not have a speakerphone  
or display, and cannot be used as an attendant console,  
features that depend on those requirements are not available  
on the cordless phone.  
If Send All Calls is programmed, select Single Ring  
Reminder, because there is no visual indication when this  
feature is activated.  
The five programmable buttons on the cordless telephone  
correspond to buttons 7 through 11 on a regular 10-button  
telephone, as shown below.  
Order of Appearance of Buttons  
10  
   
Procedures for Programming Features  
You can program FLEX DSS and Personal Speed Dialing Codes  
Before you begin this procedure,  
on your cordless telephone.  
your cordless phone should have been administered as set 303  
by the System Administrator.  
1
2
3
Lift the cordless handset from the base unit. (Make sure  
On/Off is switched to Off.)  
The LED will not be lit.  
not a pencil—to write the names of the  
Use a ballpoint pen—  
features you have selected to program on the corresponding  
button labels.  
To enter programming mode, slide the T/ P switch (located on  
the base unit) to P.  
The Channel indicator will display a “ P“ to indicate programming mode.  
or  
Press [#] [4] .  
4
5
Press On/Off.  
The light will flash.  
the code for  
Keeping the handset close to the base unit, enter  
the feature you are programming. *  
Listen for confirmation tone and dial tone.  
6
7
Press On/Off.  
The light goes off.  
mode, leave  
the center  
If you used the T/ P switch to enter programming  
programming mode by sliding the switch back to  
position.  
8
* See the AT&T System 25 Multiline Telephone User Guide for detailed procedures  
on how to implement each feature.  
11  
 

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