21
D
IALING
This section discusses the following topics:
•
•
•
•
•
Most of the time you will use your fax or data software to dial numbers, and you will not need the
information in this section. However, should you need to direct your software or do a custom setup,
this section provides some guidance.
Refer to your software documentation for instructions on using your software to dial numbers and
answer calls.
U
SING
THE
D
IAL
C
OMMAND
Your modem dials phone numbers when you give it the dial command (
ATD
) and a phone
number, either alone or with dial modifiers.
For pulse dial lines, the phone number must be an ASCII string containing the numbers Ø through
9. For touch tone dial lines, the phone number must be an ASCII string containing the numbers Ø
through 9 and the characters A, B, C, D, #, and *. The telephone number cannot exceed the size of
the command buffer (160 characters excluding the AT prefix, the carriage return control character,
and the line feed control character).
The modem uses the dial command modifiers (listed below) in the order it encounters them on the
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