User Guide

Contents
4
MultiModemDSVD User Guide
Multi-Tech Systems, Inc.
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