Boca EXPRESS 14.4, User Manual, Page: 22 / 52

On-Line EXPRESS
22
Every AT command includes an “AT” prefix,
followed immediately by the command and, in many
cases, additional parameters. Multiple commands can
be entered at the same time from the DOS prompt.
AT Command[parameter]AT Command[parameter]
... PRESS ENTER
Example: ATH or ATH0 tells the modem to
disconnect
Extended commands were developed to provide
greater functionality and control over modem
operations. Their format is the same as the basic
command except that an additional parameter is
required following the AT prefix and before the
numerical parameter. This additional parameter
comes in three different forms:
Extended AT Commands:
the ampersand (&) character
the backslash (\) character
the percent (%) character
Examples : AT&V tells the modem to display (view)
its configuration and user profile, providing the
modem has non-volatile RAM, meaning it can store
limited amounts of information when power is off.
AT%E1
tells the modem to monitor line quality.