Introduction ................................................................................................................................................ 6
Product Description .................................................................................................................................... 6
Universal Serial Bus (USB) ........................................................................................................................ 6
Manual Organization .................................................................................................................................. 7
Features ..................................................................................................................................................... 8
Technical Specifications ............................................................................................................................. 9
Introduction .............................................................................................................................................. 12
Unpacking Your MTA128ST-USB ............................................................................................................. 12
Assembling the MTA128ST-USB ............................................................................................................. 13
Connecting to Your Computer ............................................................................................................ 14
Connecting to Power ......................................................................................................................... 14
LED Indicators .......................................................................................................................................... 15
References ............................................................................................................................................... 16
Introduction .............................................................................................................................................. 18
Driver Software Installation ................................................................................................................ 18
Configuration ............................................................................................................................................ 21
Network Configuration ....................................................................................................................... 22
Call Control Configuration .................................................................................................................. 23
AT Commands .......................................................................................................................................... 25
Introduction .............................................................................................................................................. 28
Entering AT Commands ........................................................................................................................... 28
AT Commands by Function ................................................................................................................ 29
Data Call Commands ......................................................................................................................... 41
S-Registers .............................................................................................................................................. 43
S-Register Summary ......................................................................................................................... 43
Result Codes ............................................................................................................................................ 57
Modes of Operation ........................................................................................................................... 58
Making a Call ........................................................................................................................................... 58
Dialing ................................................................................................................................................ 58
Canceling a Call ................................................................................................................................. 59
Storing a Telephone Number ............................................................................................................. 59
Contents
iii
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