AT&T System 25 User Manual

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AT&T System 25

Multiline Telephone

User Guide

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Multiline Telephone User Guide Prepared by the Technical Publications Group

Contents

Introduction

Multiline Features

Account Code Entry Automatic Intercom Bridged Access

Call Accountability Call Waiting Callback Conference Calls Coverage Data Calls

Placed from Your Telephone Direct Group Calling (DGC) Direct Station Selection (DSS)

Directory Display Display Functions Exclusion Following Forwarding

Hands-Free Answering Hold Inspect Last Number Dialed Leave Word Calling Message Waiting

Night Service Paging Park Personal Message Waiting Pickup Placing Calls Programming Numbers

9 11 12 13 14 15

16 17

19 20 21 24 32 33

34 35 36 38 40 42

43 44 45 46 47 48 49 50 52

Recall Repertory Dialing (REP DIAL) Send All Calls Signaling Speaker Speakerphone Speed Dialing Testing Your Telephone Transfer

55 56

59 60 62 63 64

Glossary

Introduction

This guide describes the features available to you from AT&T System 25 through a multiline telephone and provides instructions for using the features. For your convenience, the features are arranged in alphabetical order.

Your telephone is ready to use as soon as it is connected to the System 25. Therefore, as you learn to use the features, you can make and receive calls with your telephone just as you would with any ordinary phone.

Features

Your AT&T System 25 has two types of features: fixed and assignable. multiline telephones. (In this guide, fixed features are indicated at the beginning of the feature description by a box with a check. )

A fixed feature is one that is provided on all

An assignable feature is not provided automatically on all phones. It must be “assigned” by your System Administrator. (In this guide, assigned features are indicated at the beginning of

a feature description by an empty box. )

fixed feature

assignable feature

Check with your System Administrator as to which features have been assigned to you. (As a reminder, you can place a check in the box of each assignable feature as you receive it.)

Multiline Telephone Models

The telephones shown below and on the following page are some of the phones that are used with System 25. You can use this guide with any of these telephones.

10-Button

5-Button

10-Button BIS

22-Button BIS

22-Button BIS with Display

34-Button

34-Button BIS with Display

Buttons

Most multiline telephones have Each is represented in a special

TYPE

dial pad buttons

button next to permanent label with dark background

button next to changeable label with light background

NOTE: A fourth type of button can be found on the display unit,

and is represented in this way:

Each multiline telephone has System Access buttons that are used to place and receive calls and to access special system

three standard types of buttons. way in this guide:

SHOWN AS:

features. On most phones, these buttons are located on the upper left portion of the faceplate, and are labeled with your extension number.

Line Selection

Your telephone should automatically select a line when you lift the handset to place a call, and automatically select a ringing line when you lift the handset to answer a call. These options are set by the System Administrator, and the procedures in this guide assume that you have both of them. (If you do not have these options, you must press the appropriate line button at the beginning of most precedures.)

Handset Tones

System 25 signals you with tones that are heard through the

handset. The tones and their descriptions are listed below. DIAL TONE

You can dial. CONFIRMATION TONE

Your action has been accepted. RINGBACK TONE

The number you dialed is ringing.

SPECIAL RINGBACK TONE

one short, dull tone) The person you dialed Waiting.

BUSY TONE

The number you dialed is busy.

FAST BUSY TONE The number you dialed was busy, misdialed, or restricted.

CALL WAITING TONE (short tone(s) heard during a call)

(the waiting call is an inside call)

(the waiting call is an outside call)

You have a call waiting to be answered.

is busy, and has been notified of Call

(repeating on/off tone)

(fast repeating on/off tone)

(a continuous steady tone)

(three short tones)

(repeating on/off tone)

(one long tone and

QUEUEING TONE Your request for a callback has been confirmed.

DEQUEUEING TONE The extension or outside line that you requested for callback is now available.

(five short tones)

(three short tones)

Ringing Tones

System 25 signals you with four distinctive rings. The rings and

their descriptions are listed below.

Your call is from a person inside your company.

Your call is from the attendant or someone outside your

company.

This can indicate a call on another line; a busy-to-idle reminder;

a manual signal; or that your telephone is in program mode.

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.

Lights

A steady red light indicates the line you should use when you lift the handset.

A steady green light indicates the line or feature

in use.

A slow blinking green light indicates an incoming call.

A fast blinking green light indicates a call on hold or a queued call. (An intermittent blinking green light indicates a call held temporarily while being transferred or conference.)

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 their own

“floating” extension number (FPDC).

Display Unit

If your telephone has an attached display, use the procedures and sample screens under the following sections: “Directory”,

“Display”, and “Display Functions”. If your telephone does not

have a display unit, you can skip these parts of the guide.

Additional Information

See your System Administrator if you have any questions or

would like additional information about your System 25 features.

Multiline Features

Account Code Entry

For bookkeeping purposes, your System Administrator may assign account codes to use with certain calls. If you are

required to use account codes for outgoing calls, the account code must be entered before you can place an outgoing call. If this feature is not mandantory, you may still optionally use the Account Code Entry feature.

See your System Administrator to verify the types of calls, if

any, for which you must enter an account code.

Account Code Entry - Outgoing Calls

Listen for dial tone, then press

Dial the account code.

NOTE: If you make a mistake while entering the account

code, press

Listen for dial tone.

Dial the outside line access code and listen for dial tone. Dial the telephone number.

NOTE: Do not use AC use the

procedure.

, then the correct account code.

button for this

Account Code Entry (Continued)

Account Code Entry - Incoming Calls

Automatic Intercom

You and another person may each have a button labeled

that you can use to call each other.

Using AUTO ICOM

Press

2 Listen for ringback.

Bridged Access

This feature allows for a common connection between a specific button, on your telephone and a specific line

button, join in a call or cover the other line by using your bridged access button. Up to 15 people can use their bridged access buttons for the same system access button.

Your System Administrator can set your to ring in any of the following ways:

■ Ring immediately when a call rings

line.

■ Ring after a predetermined number

Not ring at all.

If you are on a call and another call comes in on a previously idle

When someone picks up the call, the light next to your

button becomes steadily lit.

on someone else's telephone. You can

button

at the other person’s

of rings (delayed ring).

button, you will hear abbreviated ringing.

Bridging Onto a Call in Progress

1 Press the

green light.

You are connected to the call in progress.

2 To drop out, simply hang up at any time.

NOTE: You cannot bridge onto a call if any one of the

extensions on that call has their Exclusion feature turned on or if the conference limit has already been reached for that call.

button next to the steadily lit

Call Accountability

You can use your own extension number at any other extension to place toll calls that should be billed to you.

Billing Calls to Your Extension

1 Listen for dial tone, then press

2 Dial your extension number.

3 Listen for dial tone, then dial the telephone number.

NOTE: If you make a mistake, hang up and restart the

sequence.

Call Waiting

If all of your System Access buttons are busy, you may be

notified (through your handset) that a call is waiting. If you

hear one short tone, it is an inside call waiting; two short tones

indicate you have an outside call waiting.

If you have a System Access-Outgoing

your telephone, you can put your calls on hold and answer the call waiting.

of the existing calls in order to answer the call waiting.

If you do not have this button, you must end one

button on

Answering - Using SYS ACC-O

1 Press

2 Press . 3

Press

Answering - Ending a Current Call

1 End your conversation and hang up.

2 When the telephone rings, lift the handset.

Callback

If a System 25 extension or outside line is busy when you place a

call, you can request a callback. Your call will wait in a line

(called a queue) for the extension or line to become available. The system will then alert you with a priority ring and complete

the call.

For inside calls, use Callback when you hear a busy tone or a

special ringback tone.

you hear fast busy tone.

NOTE: You may hear the callback request queueing tone

automatically when you place certain calls.

Requesting Callback

For outside calls, use Callback only when

1 Before you hang up, press 2 Listen for queueing tone, then hang up.

NOTE: If you do not hear

not been accepted for this

queueing tone, your request has call.

Completing Callback

1 When you hear priority ring, lift the handset.

NOTE: If you remained off-hook after requesting Callback,

you will not receive priority ring.

2 Listen for dequeueing tone.

Your call will be completed as dialed.

Canceling Callback

1 Press

2 Press the button associated with the call. 3 Hang up.

Conference Calls

You can set up a conference that includes a combination of

System 25 extensions as well as outside calls. You may have up to five conferees; however, no more than two may be on outside lines.

Setting Up Conference Calls

1 Dial the first person and announce the conference call.

2 Press

The light next to the held call blinks intermittently.

3 Dial the next person you want added to the conference.

NOTE: If for any reason this call should not be added (busy,

no answer, or misdial): press the switchhook, then the button associated with the first person; go back to Step 2 and

continue.

4 Announce the conference call to the added person. 5 Press the button next to the blinking light to join the calls

together.

6 For each person you, want to add, go back to Step 3 and

continue the same procedures.

and listen for dial tone.

Dropping a Conferee

When you drop someone from the conference, anyone that was added by that person is also dropped unless they are on a Bridged Access or Personal Line button. If you drop the person

who added you to the conference, you will also drop anyone added to the conference by that person.

1 Press 2 Press the button of the person you want to drop.

The light associated with the dropped call goes off.

Coverage

If your System Administrator has administered this feature, calls to you can be answered (covered) at specified telephones when you do not answer the call yourself. Calls unanswered at your telephone will start ringing at the covering telephone after a preset number of rings.

line, calls will go to coverage after a preset number of rings

(usually one).

Buttons used for Coverage answering are:

Coverage calls for one specific person are sent

to an Individual Coverage button assigned to the extension.

Coverage calls for a group of two or more

extensions come in on a Group Coverage button associated with the group the extensions are assigned to.

However, if you are busy on another

Data Calls Placed from Your Telephone

If your System Administrator has assigned a

your telephone, you can use it to place data calls for your

associated data terminal.

button to

Placing a Data Call

Turn 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.

If your data call is an outside call, press Dial the data number.

Listen for a high pitched answer tone and complete any additional necessary dialing.

Press

Hang up and go to the data terminal.

within 15 seconds of hearing answer tone.

Direct Group Calling

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.

(DGC)

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.

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, programmed the System Administrator. Flexible DSS

buttons, called extensions and most other System 25 access codes. (You cannot program Pooled Facility Access codes on a DSS button.)

For instructions on how to program information in buttons, see the section titled “Programming Numbers”.

Placing Calls

When DSS Buttons Are Not Lit

consist of extension numbers or access codes

allow you to program your own frequently

1 Listen for dial tone.

2 Press

When DSS Buttons Are Lit

1 Do not lift the handset. 2 Press

NOTE: Your telephone will ring once when the other person

hangs up and your call will be placed automatically when you lift the handset.

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 you

Your display can be used in the following ways:

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

use the display more efficiently.

Checking the feature or numbers that are stored on a button, the identity of an incoming call, and the identity of a call on hold.

Viewing Display Screens

The display can show two screens of information, each containing up to 16 characters.

a time. ) Screen 1 appears automatically and indicates information such as names and extension numbers (inside calls), and identification of outside calls.

1 To view the information that appears on Screen 2 of the

display, press

2 To return to Screen 1 of the display, press again. If Screen 2 of a display is a continuation of Screen 1, such as a

telephone number that is more than 14 digits, you will see a dash at the beginning of Screen 2.

(You can view only one screen at

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 you’ are calling or who is calling you. The following example is a

typical display for an inside call:

If you try to bridge onto a call in progress using a

button, and the person has

turned on the Exclusion feature, you will see this display:

Outside Calls

When you place dialed, as in the

The following example is a typical display for an incoming outside call:

an outside call, you will see the numbers you

following:

912015551212

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”, 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 following message is displayed:

and the number of conferees currently in the

Transferred Calls

When you are receiving a transferred call, you will see the letter

“T”, followed by the number and name, if available, of the

person transferring the call. that S. Jones is in the process of transferring a call to you.

When S. Jones completes the call transfer by hanging up, you will see the identity of the transferred person, as in the following

example:

The following example shows you

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 letters SIG in front of the name of the person signaling you, as in the following example.

If the name is not available, you will see SIG followed by the extension of the person signaling you.

Account Codes

If you are dialing an account code, you will

"ACCT?" before the numbers that you dial,

example.

Redirected

Calls

If a call is redirected to your telephone (that is, sent to your telephone because the original telephone was busy, the unanswered, or one of the features listed in the table below was in effect), the display will have a redirection symbol, “ > “, at the beginning of the display. You will then see the original telephone’s extension and name, if available.

NOTE: If the call has been redirected using Park, or a data

terminal feature the beginning redirection symbol is “}”.

see the prompt as in the following

call was

If the call phone, a

has been redirected from

“c” will appear in the last

your telephone to a coverage position of Screen 1.

Display (Continued)

Screens of a Redirected Call

A display for a redirected call has two screens. Each screen includes the following information:

■ Screen 1. This screen includes a “ >” or “}”,

followed by the

original telephone extension number and name, if available.

Screen 2. This screen includes the extension number and

name of the person who placed the call, followed by a calltype symbol.

The following double-screen display shows a redirected coverage call:

Leave Word Calling

If you use the Leave Word Calling feature to notify someone that you have called, your display will show the extension number of

the person you are calling and confirm or deny that the message

has been sent, as in the following displays.

Display (Continued)

Display Symbol Summary

Display Symbols for Screen 1

The display symbols that apply to the first character position of

Screen 1 and their meanings are provided in the table below.

Display symbol

> A redirected or coverage call has been

}

Meaning of the symbol

sent to the console. A call is returning to the console from

a station that is busy or does not answer; or a call has been redirected using Park or a data terminal feature.

The button has been pressed while handling a call.

This is a call that was busy and is now available (Busy-to-Idle Reminder).

The call has been queued using

Callback.

The call has been forwarded to an

outside location.

The call being received is a transferred call.

The system can signal you when a busy telephone is available by using the Busy-to-Idle Reminder. Your display shows an “I”, the extension number (or data terminal DDC), and name of the now-idle person.

1354 Asay, J

When a call is queued with the Callback feature, the display is the same as the above, but there is a “Q” in place of the “I”.

Display (Continued)

Display Symbols for Screen 2

When you receive a redirected call, the last letter on Screen 2 will give you valuable information concerning the call. The display symbols and their meanings are provided in the table below.

Display symbol Meaning of the symbol

a This is a data terminal call.

b d

The covered station was busy. The covered station did not answer the

call.

The call sent used Following or Forwarding.

This is a DGC call.

n This is a Night Service call.

If the first redirection symbol is “ >”, the call was picked up using Pickup; if the first redirection symbol is “]”, this is a returning

Send All Calls was turned on by the

parked call.

covered station.

The call was to a non-signed-in FPDC.

Display (Continued)

Programming Your Telephone

When you start to will show:

While you are dialing the numbers and/or special characters that you want stored on a button or programmed into a dialing code, the display will show the numbers and/or have dialed, as in the following example:

program the buttons and/or codes, the display

PROGRAM

special characters you

For more information about programming

telephone, see the section for “Programming Numbers”.

numbers on your

Inspect Button

button allows you to check the number and name,

if available, of a person calling you, or of a call that you have on hold. In addition, you can determine the numbers stored on

various buttons (such as

what features is assigned to each button. For more information about the Inspect feature, see the section titled "Inspect".

buttons) and

Display Functions

The button provides access to special features built into

your display unit. The buttons at the top of the telephone (next

to the display screen) control a clock, calendar, 60-minute timer,

and an alarm.

When you press

you select next. Your display will remain in the “Local” mode

until you either place a call, receive a call, or press

again.

the screen displays whatever function

Setting the Clock, Date, or Alarm

Press

The Clock/Calendar Screen appears on the display.

3 4

Using the Timer

4 5 6

Exclusion

This feature prevents others from listening in on a shared line.

If you are on a call and activate this feature, it will automatically disconnect all other inside lines. To include selected inside people

on your call, press

Activating Exclusion

1 Answer or place a call.

2 Press

The light next to this button turns on,

NOTE: The Exclusion feature goes off automatically at the

end of your call.

before adding them to the call.

Following

You can have your personal calls sent to another telephone by

using either the Following or the Forwarding feature. To use the Following feature, at a telephone other than your own, you sign in your extension number. either sign out your extension number from that other telephone, or sign in at your own telephone.

Although Following and Forwarding send your calls to another telephone, the two features differ slightly. Read the information and procedures for both features and then. use the one that best fits your need.

Signing In - At Another Phone

To cancel the request, you may

1 Listen for

2 Dial your 3 Dial your 4 Listen for

dial tone, then press own extension number. extension number again.

confirmation tone, then hang up.

Signing Out - At Another Phone

Listen for dial tone, then press

2 Dial your extension number. 3 Dial . 4 Listen for confirmation tone, then hang up.

Signing Out All Extensions

This procedure signs out all extension numbers that have been signed in at this telephone except for the one normally assigned to it.

1 Listen for dial tone, then press

2 Listen for confirmation tone and hang up.

Forwarding

You can have your personal calls sent to another telephone or to an outside number. Unlike the Following feature, you do not need to sign in your extension number at the other telephone. Instead, simply forward your calls to another location while you are still at your own telephone.

Read the information and procedures for both the Forwarding and Following features. needs.

NOTE: Your System Administrator may or may not allow your

telephone to forward calls to outside telephone numbers. Check with your System Administrator for any restrictions you may have concerning this feature.

Then use the feature that best fits your

Forwarding Calls

At your own telephone, dial

Dial the extension number of the other telephone.

Dial the outside line access code and the telephone number of the other phone.

Listen for confirmation tone, then hang up.

Canceling Forwarding

1 At your own telephone, press

2 Dial your own extension number.

3 Dial your extension number again.

4 Listen for confirmation tone, then hang up.

Hands-Free Answering

When you use the Hands-Free Answering feature on any of the

telephones listed below, you can answer inside calls without

lifting your handset.

■ All Built-in-Speakerphone (BIS) telephones

■ All telephones with a Hands-Free Answer on Intercom

button

■ All telephones with a Hands-Free Unit (HFU)

■ 5-, 10-, 22-, and 34-Button telephones without an HFU

If your telephone has an attached display, you cannot use the Hands-Free feature when you are using the Directory or Inspect feature.

Turning On Hands-Free Answering

1 If your telephone has a

this button.

The light next to this button turns on.

2 Press

The light next to this button turns on.

button, press

Answering Calls

1 Listen for the beep that announces a call. 2 If you have a

button, begin speaking.

If you have only a button, lift the handset and

begin speaking.

or a

(Continued)

Hands-Free Answering (Continued)

NOTE:

If you have only a Speaker button, you can hear the caller, but the caller cannot hear you until you pick up the handset.

If you have a Speakerphone and Microphone, or

button, you can hear the caller and the caller can

hear you

without lifting your handset. To temporarily keep the caller from hearing you,

press

Press this button again to speak.

Ending Calls

If you had to use the handset to talk, hang up.

If you were able to talk Hands-Free, press

Press

a HFAI/MIC

Press your

NOTE: Be sure to turn this feature off before leaving your phone

unattended, or incoming calls cannot be covered by other

System 25 features, such as Forwarding, Coverage, or Send All Calls, etc.

Hold

You can hold calls while you attend to other matters and then pick them up again. up the handset without losing the call. To pick up a call you have placed on hold you must use the same telephone (or one that shares the same line).

Using Hold

Press

After you put a call on hold, you may hang

The light next to the button

2 You can handle other matters without disconnecting the line. 3 To return to the

blinking light.

4 If necessary, lift 5 Continue your conversation.

held call, press the button next to the

the handset.

the held call blinks.

Hold - Placing Another Call

1 Press 2 Press an idle line button and listen for dial tone.

3 Place and complete the second call.

4 To return to the held call, press the button next to the

blinking light.

Hold (Continued)

Hold - Answering Another Call

Press

The light next to the button of the held call blinks.

2 Press the button next to the blinking light. 3 Speak with the caller. 4 To return to the held call, press the button next to the

blinking light.

Inspect

If your telephone has an attached display, you can use the

button to do the following:

Identifying Calls on Hold

The display is the same as the one shown when the call first

came in, as in these examples:

329 Tango, S

OUTSIDE

Identify Programmed Numbers

You can identify the number that is stored on Flexible DSS and Repertory Dialing buttons, and Last Number Dialed. For example:

If no number is currently stored, you will see the feature name instead of numbers on your display:

Determine Status of Outside Lines

The display tells you the number of busy lines out of the total number of lines in a pool.

12 trunks in the pool of trunks are busy.

005 OF 012 BUSY

In the following example, five of the

Inspect (Continued)

Check Features Assigned to Buttons

If you inspect a button other than those shown above, you will simply see the name of the feature assigned to that button. For example:

Using the Inspect Feature

While using the Inspect feature, you are able to answer calls.

Press

The display will initially read:

2 Press the button you want to inspect.

Turning Off the Inspect Feature

When you do any of the following, you automatically turn the Inspect feature off:

Hang up the handset after being off-hook; Lift the handset after being on-hook;

Allow the display to be idle for 15 seconds.

Answer an incoming call.

Last Number Dialed

You can redial the last number you dialed (up to 16 digits) by

using the

button.

Numbers are stored in Dialing feature or the following buttons:

Numbers are not stored in Account Code Entry or Call Accountability features or the following buttons:

when you use the Speed

when you use the

Using Last Number

1 Listen for dial tone.

2 Press

NOTE: If you dialed the last telephone number with any of

the following buttons, you must use the same type of button

to obtain dial tone before you redial:

Leave Word Calling

You can use the Leave Word Calling feature only if the VOICE POWER Voice Message System is connected to your System 25. You may want to use the Leave Word Calling feature for any of the

following reasons: The

■

person you called is busy

The

call is unanswered

■

have requested callback for that extension

You

have been connected to Coverage for that extension

You instructions on obtaining messages left at your telephone,

your System Administrator.

Leaving Messages While on a Call

1 Press

2 Listen for confirmation tone, then hang up.

NOTE: If you hear fast busy tone instead of confirmation

tone, either the other to it, or the extension

Leaving Messages

Listen for dial tone, then press

telephone does not have VMS assigned

you dialed is invalid.

When Not on a Call

Dial the extension of the other person.

Listen for confirmation tone, then hang up.

NOTE: If you hear fast busy tone instead of confirmation

tone, either the other telephone does not have VMS assigned to it, or the extension you dialed is invalid.

Message Waiting

Message Waiting is available on most multiline telephones, and is a feature that can be used by anyone in the system. Most telephones have a light that indicates a waiting message.

You may also have a

turn the light off after you receive messages. If yor telephone does not have a code to turn it off.

If you have a button, you can also control the

message waiting lights on telephones that you provide

Individual Coverage for, or for which you have a

button, (if you want to check on the feature) associated with the "Personal Message Waiting".)

button, you must use a feature access

button, which you can press to

button, go to the section titled

Turning On Message Lights

1 Listen for dial tone, then press 2 Dial the extension number of the other telephone. 3 Listen for confirmation tone, then hang up.

NOTE: If you hear fast busy tone instead of confirmation

tone, either the other telephone has no message waiting light or the extension you dialed is invalid.

Turning Off Message Lights

1 Listen for dial tone, then press

NOTE: To turn off your own light, press your

button.

2 Dial the extension number of the telephone. 3 Listen for confirmation tone, then hang up.

Night Service

When the attendant leaves for the night, the system can be set so that incoming calls either ring a night bell or are directed to preassigned telephones. See your System Administrator for the night service access code.

Answering Calls

1 Listen for dial tone.

2 Dial the night service access code.

Paging

If your company has a paging system, you may access the

system by using either a button or a code. See your System Administrator for the paging access code, and for additional information if you have zoned paging.

Using the Paging System

1 Listen for dial tone.

2 Press

NOTE: If you dialed a code, listen for

3 Make your announcement, then hang

or dial the paging access code.

confirmation tone.

up.

Park

Parked calls are similar to held calls except that they can be

picked up from any telephone. within a preset interval (the usual time is two minutes), it will

ring at the telephone that parked the call. You can only park one call at a time from your telephone.

Parking a Call

1 Press

The light next to the button of the call on hold blinks.

If a parked call is not picked up

2 Press

3 Press

4 Listen for confirmation tone and dial tone. 5 If the call is for someone else, dial or page that person,

notifying them of the extension number where the call is parked.

NOTE: If the person does not answer, press the button next

to the blinking light and complete your conversation caller.

6 Hang up.

and listen for dial tone.

with the

Picking Up Parked Calls

1 Listen for dial tone, then press 2 Dial the extension number where the call is parked.

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

turned off at either telephone.

Sending a Personal Signal

1 Do not lift the handset.

being lit. This light can be

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.

Pickup

Pickup allows you to answer a call that is ringing at another telephone.

Picking Up Calls

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. )

All multiline telephones have this fixed feature.

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.

“busy-to-idle” reminder. This reminder lets you know when the

line is no longer busy.

If the light is on, you can activate a

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

tone.

2 Dial the outside line access code and lsiten for dial tone

again.

3 Dial the telephone number or press a

and listen for dial

button.

Placing Calls (Continued)

Using Facility or Pers Line Buttons

1 Press 2 Dial the telephone number or press a

and listen for dial tone.

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.

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.

NOTE: These special characters cannot be programmed into

buttons.

access code and the telephone.

You program: 9*5557023 This means: 9 (1.5 second pause) 555-7023

Using *

If you want to use the “*”

before the “*”.

For example, you may want to program the feature access code

"*70" into a

as a Character

as a character, you must place a “ # “

button.

You program: # *70 This means: *70

Programming Numbers (Continued)

Using # as a Character

If you want to use a two “ # “s in the programmed number.

For example, you may want to program a Call Accountability feature access code (# # extension), into a

You program: # # # #275 This means: # #275

“ # “ as an actual character, you must place

button.

Using # with Speed Dialing Codes

When you want to have a Speed Dialing code as part of your programmed number, you should use a single “ # “ for the code.

For example, you may want to program the System Speed

Dialing code "#100" into a

button.

Programming Numbers (Continued)

Programming or

Removing Numbers

Using the Switch

1 Slide the switch on

listen for dial tone.

2 If you want to remove a number, go to Step 3.

Dial the number you want to program.

3 To indicate on which button this number should be

programmed or removed:

Press

Press “ # “ and a

4 After confirmation tone and dial tone, hang up. 5 Slide the switch back to the midpoint between “ T“ and “P”.

the left side of the telephone to P and

Personal Speed Dialing number (20 - 39).

NOTE: If the switch is not moved, your phone will ring

every minute to remind you that you are in program mode.

Using a Code

Listen for dial tone, then press

If you want to remove a number, go to Step 3.

Dial the number you want to program. To indicate on which button this

programmed or removed: Press

Press "#" and a Personal Speed Dialing number (20-39).

After confirmation tone and dial tone, hang up.

number should

Recall

If a System 25 telephone or outgoing line is busy when you attempt to place a call, you can press

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.

and hang up.

Repertory Dialing (REP DIAL)

You can program telephone numbers, account codes, or feature access codes into

characters). You can then dial the programmed number by pressing

buttons (a maximum of 28

For instructions on how to program

section for “Programming Numbers”.

Placing Calls

1 Listen for dial tone.

Press

numbers, see the

Send All Calls

You can use the immediately to coverage.

All Calls feature simply turns off the ringer at your telephone for most incoming calls. 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.

If you do not have coverage, the Send

In either case, the light next to the ringing

button to send your calls

Turning On Send All Calls

1 Do not lift the handset.

Press

The light

Turning

next to this button turns on.

Off Send All Calls

1 Do not lift the handset.

2 Press

The light next to this button goes off.

Signaling

You can use a button to send an alert to another telephone without actually calling that telephone.

Signaling Another Telephone

1 Do not lift the handset.

Press

The other telephone receives a short burst of ringing tone.

Speaker

Some telephones have a place calls without lifting the handset, and allows others to listen

during calls. handset.

Placing Calls

You cannot speak to the caller unless you lift the

Speakerphone

If you have a Built-In-Speakerphone (BIS) telephone or multiline telephone with a Hands-Free Unit (HFU), you can use the

Placing Calls

The light next to Speakerphone turns on to indicate that you can listen, and the light next to Microphone turns on, indicating that you can be heard on the other end.

2 When the other person answers, begin talking.

NOTE: If you want to temporarily keep the other person .

The light next to this button turns on again.

Answering Calls

The light next to Speakerphone turns on to

and the light next to Microphone turns on,

heard by the caller.

Begin talking.

NOTE: If you want to temporarily

hearing you, press

The light next to this button goes off.

When you want to resume your conversation with the caller,

indicate that you can listen,

indicating

that you can be

keep the caller from

Speakerphone (Continued)

Ending Calls

1 Wait until you have completed your conversation.

The lights next to the Speakerphone and Microphone buttons go off.

Speed Dialing

Speed dialing allows you to dial telephone numbers (or enter account codes) by simply dialing “ # “ and a 2- or 3-digit code. There are two kinds of speed dialing— Personal and System.

Personal Speed Dialing codes are 2-digit numbers that allow you to program up to twenty personal numbers. These Personal Speed Dialing codes use the numbers 20 through 39.

System Speed Dialing codes are 3-digit numbers programmed by your System Administrator, and are used for numbers that are frequently called by people in your company. System Speed Dialing codes use the numbers 100 through 189.

For instructions on how to program Personal Speed Dialing numbers, see the section for “Programming Numbers”.

Placing Calls

1 Listen for dial tone. 2 Dial the #, followed by the selected

number (either 20 through 39 or 100

speed dialing through 189),

code

Testing Your Telephone

You can test the lights and ringer on your telephone if you have a Test/Program Switch. On some telephones, the Test/Program switch has a spring. position to test the lights and ringer; the switch will automatically return to the midpoint when released.

Testing

Slide the switch on the left side of your telephone to “T”.

The red and green lights alternately flash, and the ringer sounds.

If so, you must hold the switch in the “T”

NOTE:

“T” position.

If your switch has a spring, release the switch. If there is no spring, slide the switch back to the midpoint between “T” and “P”.

If your switch has a spring, hold the switch in the

Transfer

You can easily transfer calls to another System 25 telephone. You can also transfer some calls to outside lines. However, you should see your System Administrator for more information

about this type of transfer. When you transfer a call, the original person is temporarily

placed on hold and is not connected to the other person until you hang up. At that time, the call disappears from your

telephone.

Transferring Calls

The light next to the button of the call on hold blinks.

2 Dial the other person's extension or press a line button, such

NOTE: If you misdial the number, return to the person on

hold by pressing the button next to the blinking light. Then

return to Step 1 and continue.

3 Hang up if you do not want to announce the call.

Otherwise, announce the call and then hang up to complete the transfer.

NOTE: If the person you attempt to call does not answer,

press the button next to the blinking light to return to the call

on hold.

Glossary

account code entry

alarm assigned button

assigned feature

automatic intercom

BIS

busy-to-idle reminder

feature that allows you to assign account codes to calls to charge them to specific customers, clients, or business cases.

feature that warns you of system problems. button that may be given to you as an

optional feature. optional feature that can be distributed by

the System Administrator. feature that allows two people to each have

a dedicated button for calling each other. (Built-in-Speakerphone) name of a multiline

telephone that allows you to listen and speak on any call without lifting the handset.

feature that automatically notifies you when a person or line is available.

call accountability

call waiting

callback

conferencing

feature that allows you to make calls at another telephone and charge them to your extension number.

a telephone feature that notifies you of an incoming call while on another call.

feature that allows you to request the use of a busy extension or line. The system will signal your telephone when the telephone or line is available.

feature that allows you to have up to five parties on a call.

confirmation

tone

three short tones indicating that an action was accepted.

coverage

DDC

DGC

DSS

data call (from telephone)

dequeueing tone

feature that allows individuals to have their calls answered by someone else.

(Data Dial Code) extension number

assigned to a data terminal. (Direct Group Calling) a group of

telephones where incoming calls are distributed among the group members.

(Direct Station Selection) button containing an extension number or an access code, and

programmed by the System Administrator.

(For buttons that you can program, see

FLEX DSS.) feature that allows you to place a data

call from your telephone, then transfer the call to your data terminal.

three short tones indicating the

Callback

feature can now be completed.

exclusion

extending calls

FPDC

fast busy tone

feature that allows you to keep

others from

listening in on a conversation. procedure followed by the attendant when

sending a call to the desired party. (Floating Personal Dial Code) a number

associated with a person, but not a

particular telephone. FPDCS provide the convenience of receiving calls at various telephones.

repeating on/off tone indicating that the dialed number or access code is busy, misdialed, or restricted, or that an outgoing

line is busy. (Sometimes called reorder tone.)

feature access code

series of numbers and characters that allow you to access System 25 features.

fixed feature

following/ forwarding

hands-free

answering hold idle line

preference

inside call

leave word calling

standard feature that is available to every telephone.

feature that allows you to redirect calls to another telephone.

feature that provides answering of

calls without lifting the handset. feature that temporarily suspends a call.

feature that allows a telephone to

automatically select a button when you lift

the handset to place 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, you must have a VOICE POWER Voice Message

System (VMS) connected to your System 25.

message waiting

message waiting signal

system access button

system access originate only button

night service

feature that allows you to turn message lights on and off at ‘telephones in the system. (See also personal message waiting. )

feature that allows two people in the system to turn a light on or off at each other’s telephone, notifying them of a message.

button that gives you direct access to System 25 to dial or to access features. It is labeled with your extension number.

an extra system access button on which you can place calls, but cannot receive calls.

feature that allows you to send incoming calls either to a bell or to preassigned telephones when you leave for the night.

off-hook

either the handset has been removed from its cradle or the speaker/speakerphone is

turned on.

on-hook

outside call

outside line

PDC

paging feature

park

the handset is in its cradle and the speaker/speakerphone is turned off.

call between a System 25 telephone and a telephone not connected to the System 25. Outside calls are made over Central Office or other lines and are signalled by two short rings.

a line to the Central Office or other system.

Outside lines may be accessed by pressing

special buttons or by dialing an access code. (Personal Dial Code) extension number that

is assigned to an individual and is usually associated with the telephone at the individual’s desk. (See also FPDC.)

allows you to access paging equipment from System 25 telephones.

a feature similar to hold, except that it allows you to answer the call from any telephone in the system.

personal message waiting

pickup

prime line preference

queue

queueing tone

feature that allows you to turn on and off a light at another person’s telephone to notify them of a message.

feature that allows you to answer a call that is ringing at another telephone.

feature that allows the telephone to select

a button automatically when you lift the

handset to place a call.

a place where calls are held until they can

be acted upon (such as a request for

Callback). five short tones indicating that your request

for a Callback is confirmed.

repertory dialing

feature that allows you to program a telephone number or account code into a REP DIAL button and then dial by pressing that button.

ringback tone

ringing line

preference

send all caIls

signaling

special ringback

tone

speed dialing

repeating on/off tone indicating that the number you dialed is ringing.

feature that allows the telephone to select the ringing line automatically when you lift the handset to answer a call.

feature that can be selected at a telephone to send calls to a “covering” telephone.

feature that sends an audible alert to another telephone without calling that telephone.

one long tone followed by one short, dull tone indicating that the person you dialed is busy on a call and has Call Waiting.

feature that allows you to place a call or enter an account code by pressing the “ #” and a 2- or 3-digit code.

switchhook

system administrator

test

transfer

trunk

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 test the lights and ringer on your telephone.

feature that allows you to connect the person you are talking with to another person, and then drop out of the

conversation. a telecommunications line between two

switching systems. (See also outside line. )

AT&T System 25

QUICK REFERENCE CARD

Multiline Telephone

FEATURE ACCESS CODES

FEATURE

Account Code Call Accountability

Callback

Call Waiting

Direct Group Calling

Following (at another extension)

Forwarding (from your extension)

Leave Word Calling

Message Waiting

DESCRIPTION CODE

to enter an Account Code to charge call to correct extension to request callback for a busy ext./line to cancel callback, while on that call to answer call waiting

to leave your DGC group to return to your DGC group to sign in extension

to sign out extension to sign out all extensions to send your calls to another extension to send your calls to a remote number

to cancel forwarding to leave a message when calling extension LEAVE WORD to leave message when not on that call to turn on message light

to turn off message light

* 0 Code ## Ext. RECALL DROP

** Ext. Ext.

** Ext. 0

** 0 #70 Ext. #70 number

** Ext. Ext.

LEAVE WORD Ext. #90 Ext. #91 Ext. or MESSAGE

(for yourself)

Message Waiting, Coverage

Park

Pickup

Programming

Send All Calls

Speed Dialing

to signal ext. while on coverage call

to signal ext. when not on coverage call to cancel message waiting signal to parka call

to answer a parked call to pickup call ringing in your group to pick up call ringing outside group to program a button or code to send calls to coverage or turn off ringer to turn off Send All Calls feature to dial a programmed number

(20-39, 100-189)

(See Dial Code list on other side.)

COVER MSG

COVER MSG Ext.

COVER MSG Ext. COVER MSG

* 8 Ext. that parked call * 70

* 7 Ext. #4 SEND ALL CALLS SEND ALL CALLS

AT&T System 25 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Features

Multiline Telephone Models

Buttons

Line Selection

Handset Tones

Ringing Tones

Lights

Data Dial Code (DDC)

Personal Dial Code (PDC)

Display Unit

Additional Information

Multiline Features

Account Code Entry

Automatic Intercom

Bridged Access

Call Accountability

Call Waiting

Callback

Conference Calls

Coverage

Data Calls Placed from Your Telephone

Direct Station Selection (DSS)

Directory

Display

Display Functions

Exclusion

Following

Forwarding

Hands-Free Answering

Hold

Inspect

Last Number Dialed

Leave Word Calling

Message Waiting

Night Service

Paging

Park

Personal Message Waiting

Pickup

Placing Calls

Programming Numbers

Recall

Repertory Dialing (REP DIAL)

Send All Calls

Signaling

Speaker

Speakerphone

Speed Dialing

Testing Your Telephone

Transfer

Glossary

QUICK REFERENCE CARD