MultiModemDSVD User Guide

Contents

Chapter 4 - AT Commands......................................................................

27

AT Commands ......................................................................................................................

28

AT Command Summary .....................................................................................................

29

Voice Commands ..................................................................................................................

44

S-Registers ..............................................................................................................................

46

Result Codes ..........................................................................................................................

50

Chapter 5 - Solving Problems ...............................................................

53

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

54

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

54

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

55

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

56

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

57

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

58

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

58

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

58

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

59

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

59

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

59

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

61

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

61

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

62

Industry Canada ...................................................................................................................

62

Fax Branding Statement .......................................................................................................

63

Canadian Limitations Notice ..............................................................................................

63

EMC, Safety, and R&TTE Directive Compliance .............................................................

64

International Modem Restrictions ......................................................................................

64

Appendix B: Technical Specifications ...................................................

65

Appendix C: Warranty, Service, and

 

Technical Support ............................................................

68

Multi-Tech Systems, Inc. Warranty & Repairs Policies ...................................................

68

Online Warranty Registration ......................................................................................

69

Service .............................................................................................................................

70

Replacement Parts .........................................................................................................

71

Technical Support ..........................................................................................................

71

Internet Sites ...................................................................................................................

71

Multi-Tech Systems, Inc.

4