TABLE OF CONTENTS

INITIAL SETUP

 

Introduction

3

Packing List

3

Terms

3

420 Key Features

4

420 Display

6

Installing the Battery

6

INSTALLATION

 

Desk/Wall Mounting Bracket

7

Connecting the Telephone

7

Back Panel Connections

7

Side Panel Connections

7

Two RJ14 2- Line Telephone Jacks

8

One RJ61 4-Line Telephone Jack

8

INITIAL PROGRAMMING

 

To Enter the Program Mode

10

To Exit the Program Mode

10

Setting the Language

10

Setting the Time and Date

10

Setting the Extension ID

11

Setting Message Waiting Indicator On/Off 11

PROGRAMMING OPTIONS

Turning the Ringers On or Off

12

Change the Ringer Types

12

Setting the Delay Ring

13

Programming the Line Usage

14

Setting the Prime Line

15

Programming Line Groups/Private Line ....

16

Setting Auto-Mute

17

Auto Intercom Answer

17

Setting Tone/Pulse Dialing

18

Changing the Flash Duration

18

Changing Hold Reminder

19

Programming Area Codes

19

Resetting the 420

20

TELEPHONE OPERATION

New Call/Message Waiting Indicator

21

Voice Mail

21

Turning the Message Waiting Indicator

 

Off

21

Line Status Indicators

22

Volume Control

22

Off-Hook Volume

22

Ringer Volume

22

Making Telephone Calls

23

Prime Line

23

Receiving Telephone Calls

23

Receiving Call Waiting Calls

23

Transferring Calls

24

To Transfer a Call

24

Answer a Transferred Call

24

Hold

24

To Place a Call on Hold

24

To Release a Call on Hold

24

Mute

25

To Mute a Call

25

To Release Mute

25

Flash/Feature

25

Redial/Last Number Redial

25

Auto Redial

25

3-Way Call Conferencing

26

Tone/Pulse Mixed Dialing

26

DND - Do Not Disturb

26

To Activate DND

26

To Deactivate DND

26

Call Privacy - Extension Conferencing

27

To Deactivate Call Privacy

27

To Restore Call Privacy

27

Paging and Intercom

27

Paging All Extensions

27

Answering a System Wide Page

27

Paging a Single Extension

28

Answering a Single Extension Page

28

Auto-Mute Off at Receiving Extension ...

28

Auto-Mute On at Receiveing Extension . 28

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AT&T SBC-420 user manual Table of Contents

SBC-420 specifications

The AT&T SBC-420 is a high-performance broadband and voice communication device designed to meet the demands of both residential and business users. As a part of AT&T's ongoing commitment to providing reliable connectivity solutions, the SBC-420 integrates advanced technologies to enhance user experience and deliver robust service capabilities.

One of the main features of the SBC-420 is its dual-mode functionality, allowing it to operate as both a digital subscriber line (DSL) modem and a Voice over Internet Protocol (VoIP) gateway. This versatility makes it an ideal choice for users who require both high-speed internet access and digital voice services. With its support for multiple simultaneous calls over the same broadband connection, the SBC-420 ensures that users can enjoy clear and uninterrupted voice communication.

The SBC-420 is equipped with advanced DSL technology, supporting ADSL2+ for faster download speeds and improved performance. This technology enables users to experience seamless streaming, gaming, and browsing capabilities, even during peak usage times. The device brings high-speed internet access right into the home or office, reducing latency and enhancing the overall internet experience.

In terms of wireless connectivity, the SBC-420 features built-in Wi-Fi capabilities, offering users the flexibility to connect multiple devices without the need for additional routers or access points. With dual-band support, this device can reduce interference and provide stable connections across various environments. The inclusion of multiple Ethernet ports also ensures that wired connections can be established for devices that require a more dependable connection.

Security is a key focus for the SBC-420, which includes robust encryption protocols to protect user data and maintain privacy across the network. The device simplifies network management and security settings, allowing users to easily monitor and configure their home or office network to their specific needs.

Overall, the AT&T SBC-420 combines essential features, cutting-edge technologies, and user-friendly characteristics into a single device that excels in delivering fast internet and reliable voice services. Its adaptability, advanced performance, and commitment to security make it an excellent choice for a wide range of users, from casual consumers to small businesses seeking dependable communication solutions.