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Using the AT Automatic Calling Interface 5-1
Using the
AT ACU
Chapter 5
Using the AT Automatic Calling Interface
Contents
Introduction .................................................................................................. 5-2
What is the Attention (AT) Command Set? .................................................. 5-3
What Role Does Communications Software Play? .................................. 5-3
Using AT Commands .................................................................................... 5-3
Entering AT Command Lines ................................................................... 5-3
Autobaud Feature ..................................................................................... 5-5
The Escape Sequence—(+++) ................................................................. 5-5
Non-Configuration AT Commands .......................................................... 5-6
S-Registers ............................................................................................... 5-9