Table of Contents

 

 

 

 

 

 

 

How to Use this Manual

2

 

Key to Symbols

4

 

 

 

 

 

 

Ringing Patterns

5

 

Groups (2448 System)

5

 

Indicator Light Patterns

5

 

Parts of the Telephones

6

 

 

 

 

 

 

Line, Auto-Dial, and Programmable Buttons (308/616 System)

8

 

 

 

 

 

 

Line and Multi-Purpose Buttons (2448 System)

10

 

 

 

 

 

 

Answer Calls

12

 

 

 

 

 

 

Place Calls (308/616 System)

14

 

 

 

 

 

Place Calls (2448 System)

16

 

 

 

 

 

 

Conference

18

 

 

Hold

20

 

Transfer

21

 

 

 

 

 

 

Message

22

 

 

 

 

 

 

Change to Touch Tone

23

 

 

 

 

 

 

 

Do Not Disturb

24

 

 

 

 

 

 

 

Line Reserve

24

 

 

Privacy Release and Bridging

25

 

Switchhook Flash

25

 

Night Service

26

 

 

 

 

 

Auto Callback (2448 System)

26

 

 

 

 

 

Intercom Call Forward (2448 System)

27

 

 

 

 

 

Mute

27

 

 

 

 

 

 

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AT&T Communications System user manual Table of Contents