User guide

Chapter 4 - Warranty & Service ........................................................ 60
4.1 Multi-Tech Systems, Inc. Warranty & Repairs Policies ........................ 61
4.1.1 Warranty ............................................................................................ 61
4.1.2 U.S. and Canadian Customers ......................................................... 61
4.1.3 International Customers (outside U.S.A. and Canada) .................... 62
4.1.4 International Distributors .................................................................. 62
4.2 Repairs ................................................................................................. 63
4.2.1 Repair Procedures for U.S. and Canadian Customers .................... 63
4.2.2 Repair Procedures for International Customers .............................. 63
4.2.3 Repair Procedures for International Distributors ............................. 64
4.2.4 Replacement Parts ............................................................................ 64
4.4 Technical Support ................................................................................. 64
4.5 Internet Site .......................................................................................... 64
Chapter 5 - AT Commands ................................................................. 65
Modem AT Commands .................................................................................. 66
Modes of Operation ....................................................................................... 66
Command Structure ......................................................................................66
Command Editing .......................................................................................... 67
Modem S-Registers ....................................................................................... 79
Modem Result Codes .................................................................................... 85
Terminal Adapter AT Commands .................................................................. 87
General Information Commands ................................................................... 91
Analog (Modem) Call Commands ............................................................... 108
Terminal Adapter S-Registers ..................................................................... 110
Chapter 6 - Troubleshooting ............................................................ 122
Index................................................................................................. 126