Contents

Chapter 1: Introduction ......................................................................................................

2

Product Description and Features ...............................................................................

2

What’s In Your Modem Package? ................................................................................

3

Chapter 2: Installation .......................................................................................................

6

Introduction .................................................................................................................

6

What You Will Need .....................................................................................................

6

Safety Warnings ..........................................................................................................

6

Connecting the Modem to Your System ......................................................................

7

Connections for the MT5600ZDX ....................................................................

7

A Note About Power Connection, Surge Protectors, and Lightning ................

8

Power-On Test .................................................................................................

8

Using Your Modem ..........................................................................................

8

Connections for the MT5600ZDXV .................................................................

9

2. Connect the Microphone .............................................................................

9

3. Connect the Speaker ...................................................................................

9

Installing the Modem Driver ......................................................................................

10

Modem Driver Installation for Windows 95/98/Me/2000/Xp...........................

10

Modem Driver Installation for Windows NT ..................................................

10

Loading Data Communications Software ..................................................................

11

Removing an Old Modem Driver ...............................................................................

11

Connecting to the Internet .........................................................................................

12

Dial-Up Networking ...................................................................................................

12

Sending a Fax ...........................................................................................................

13

About the LED Indicators ..........................................................................................

13

Chapter 3: Advanced Options .......................................................................................

15

Introduction ...............................................................................................................

16

Configuring Your Communications Software .............................................................

16

Configuring Your Modem ...........................................................................................

17

Chapter 4: AT Commands ...............................................................................................

18

Introduction ...............................................................................................................

19

Chapter 5: Troubleshooting .............................................................................................

20

Introduction ...............................................................................................................

21

None of the Indicators Light ......................................................................................

21

The Modem Does Not Respond to Commands ........................................................

22

The Modem Dials But Cannot Connect.....................................................................

23

The Modem Disconnects While Online .....................................................................

24

The Modem Cannot Connect When Answering ........................................................

25

File Transfer Is Slower Than It Should Be .................................................................

25

Data Is Being Lost .....................................................................................................

26

There Are Garbage Characters on the Monitor ........................................................

26

The Modem Doesn’t Work with Caller ID ..................................................................

26

Fax and Data Software Can’t Run at the Same Time ...............................................

27

Appendix A: Regulatory Compliance ..............................................................................

29

FCC Part 15 ..............................................................................................................

29

FCC Part 68 Telecom ................................................................................................

30