3.2 Commanding the Modem
3.2.1 The AT Command Set
Your modem uses the 'AT' command set. These commands are used to
exercise the powerful features of your modem, such as:
• Making user configurations.
• Saving telephone numbers in the modem's directory.
• Auto-dialling telephone numbers.
• Performing modem tests.
Section 3.3 provides an explanation of the AT command language with
simple working examples. We recommend you to read this even if you have
used AT commands before.
The AT commands are listed alphabetically in Chapter 8.
3.2.2 The V.25bis Command Set
ITU-T has defined the V.25bis Recommendation for commands. However,
it is much more limited than the AT command set, as it only covers dialling
a telephone number. Your modem has been equipped with a V.25bis
command set to make it compatible with hosts using software based on this
language. Details are in Chapter 10.
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