Table of Contents
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273G) 3
Table of Contents
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
Unformatted Form Reporting – Caller ID .................................................................................................................. 38
Voice Mode Shielded Codes .................................................................................................................................... 38
Chapter 4 – V.8 / V.8bis Commands ......................................................................................................................... 40
Chapter 5 – V.25bis Commands ................................................................................................................................ 41
V.25bis Responses .................................................................................................................................................. 42
Chapter 6 – S-Registers ............................................................................................................................................. 43
S-Registers .............................................................................................................................................................. 43
Chapter 7 – Result Codes .......................................................................................................................................... 46
Chapter 8 – Setting Country/Regional Codes .......................................................................................................... 51
Index ............................................................................................................................................................................ 52