3.2.5. Call (Voice and Data) Control
3.2.5.1. ATD - Dialup Connection
This command establishes a Mobile Originated call to the destination phone number.
ATD
The ATD execution command can assume different formats, which are
described in the following Additional info section.
Additional info:
ATD<number>[;]
If ";" character is present, a voice call is performed using the phone
number given as parameter.
phone number to be dialed
Accepted characters are 0-9
and *,#,"A", "B", "C", "+". For
backwards compatibility with
landline modems, modifiers "R",
",", "W", "!", "@" are accepted,
but have no effect. "P" will pause