Chapter 1 - Introduction..............................................................................................................................................4
Chapter 2 - AT Commands .........................................................................................................................................5
General Commands ...................................................................................................................................................5
Escape Commands..................................................................................................................................................16
Modem Connection Commands...............................................................................................................................17
Caller ID Commands................................................................................................................................................19
Callback Security Commands ..................................................................................................................................19
Data Compression Commands ................................................................................................................................20
Error Control Commands .........................................................................................................................................21
DTE Commands.......................................................................................................................................................23
Modulation Command ..............................................................................................................................................24
Call Control Command.............................................................................................................................................25
Test Command.........................................................................................................................................................27
Chapter 3 - Voice Commands...................................................................................................................................28
Voice Commands Overview .....................................................................................................................................28
Configuration Commands ........................................................................................................................................28
Voice Commands.....................................................................................................................................................30
Speakerphone Commands ......................................................................................................................................37
Voice Mode Shielded Codes ....................................................................................................................................38
Chapter 5 - V.25bis Commands................................................................................................................................41
V.25bis Responses ..................................................................................................................................................42
Chapter 6 - S-Registers.............................................................................................................................................43
S-Registers ..............................................................................................................................................................43
Chapter 7 - Result Codes..........................................................................................................................................46
Index............................................................................................................................................................................52
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F)
Table of Contents
Table of Contents
3