AT Command String Examples

AT ACU

Using the

To enter multiple AT commands on a single command line:

Multiple AT commands can be entered on a command line using a single AT prefix. The modem accepts up to 60 characters after the prefix. Spaces are not counted in the length. AT commands are interpreted in sequence in the command line until one of the following occurs:

•A <CR> is encountered

•An invalid command is encountered

•A command is encountered which causes the modem to reset, go off-hook, or enter a test state

For example, you might enter:

ATE0V1&W<CR>

on a single command line. This command disables Asynchronous Echo. It configures the Result Code Format to Verbose, and the Save Changes feature to Option Set 1. (These options and settings are described fully in Appendix A.)

Commands that are followed by a telephone number must be at the end of the line. However, if the semicolon dial modifier (;) follows a telephone number, the modem returns to command mode after dialing. Therefore, AT commands can be entered after a semicolon in a command string. NOTE: If an error occurs, AT commands prior to the error are executed; commands following the error are ignored.

If you enter an AT command that requires a postscript number and no number is entered, the modem defaults to a 0 setting.

Table 5-1provides AT command string examples and their ACU results.

Table 5-1.

Interpreting AT Command Strings

Command	Interpretation
AT&X<CR>	Postscript number needed and none is provided. 0 is assumed.
	Transmitter timing is set for internal.
ATS2	No response. Needs a carriage return after the command.
GATE0<CR>	Ignores everything before theAT prefix. The G is ignored. This
	command disables the asynchronous echo feature.
ATS2?Q=1<CR>	Multiple command line. Selects S-Register 2 as the current S-Register,
	displays contents of S-Register 2, turns on result code displays, and
	sets S-Register 2 to 1.

For Further Detail on AT Commands

For a description of AT commands, and dial modifiers, refer to Appendi xA.

5-4 Using the AT Automatic Calling Interface

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Telenetics V.34-SDC, 326X V.34 manual To enter multiple AT commands on a single command line

Models: 326X V.34 V.32bis Series V.34-SDC

To enter multiple AT commands on a single command line: