At Command List - Paradyne COMSPHERE 3800PLUS User Manual

COMSPHERE 3800Plus Modems
All commands (except A/ (repeat last command)
and +++) must begin with the characters AT and
end by pressing the Enter key. The AT (or at) prefix
clears the command buffer and matches the modem
speed and parity to that of the DTE. Commands can
be upper- or lowercase, but the modem will not
recognize mixed case prefixes (At or aT).
Commands can be entered one at a time or in
strings. Strings can have up to 40 characters after
the AT prefix. You can use spaces, hyphens (–), and
parentheses ( ) as fillers to make the commands
easier to read; the modem ignores these fillers and
they are not counted among the characters which
make up the command string. Commands must be
entered on one line and end with the carriage return
character (Enter key).
Commands with the suffix n have several options
associated with them. For example, in the
Ln command, L1 sets the speaker volume to
Low and L3 sets the speaker volume to High. If no
value is entered for the n suffix, the modem
assumes a zero (0) value.
The A/ command (without pressing the Enter key)
causes the modem to repeat the last command
entered.
Valid commands are acknowledged with numeric or
word result codes (unless the result codes have been
disabled using the Q1 command). Appendix B lists
result codes with numeric and word equivalents.
Any-Key Abort
The any-key abort function aborts a call establishment
attempt when a character is received from the DTE under
the following conditions:
The AT command set is enabled.
The modem is in the process of answering or
originating a call.
13-2

AT Command List

AT commands are issued from an asynchronous DTE,
such as a PC, and control the modem's operation and
software configuration. AT commands are only applicable
when the DTE Dialer Type configuration option is set for
AT. (See &Mn and &Qn commands.)
Table 13-1 lists all AT commands supported by the
3800Plus modem. The first column lists the AT command.
The second column defines and lists all possible values
for that command. The Async Dial factory default is listed
in bold. The third column lists the key sequence used to
enter the equivalent front panel command. Use this
reference to locate commands in Chapters 4 through 10 if
further description is necessary.
AT Command Format
AT commands are entered in Command mode using the
following format:
TYPE: ATXn
Where: X is the AT command and n is the
specific value for that command.
PRESS: Enter
In Table 13-1, the value for X is listed in the AT
Command column and the value for n is listed in the
Description column.
October 1998 3980-A2-GB30-40