Appendix At Commands; Basic At Commands - HP Brio 80xx Online Manual

Basic AT Commands

This section describes the AT commands supported by your modem. If you send an AT command that is not applicable,
the modem returns an error message.
The following table lists the basic AT commands.
Command
+++ Escape characters used to switch between Data mode and Command mode. In either case the computer stays connected to remote modem.
ATA Manually answers incoming calls. Modem does not answer the telephone.
A/ Repeats the last command line executed.
AT Attention. Begins each command line, except
appear on your screen, your modem is not configured properly.
ATBn Switches between BELL/ITU standards at 300 or 1200 bps, where n is either 0 or 1:
0 - The ITU V.22, V.21 (factory default) standard.
1 - The Bell 212A and Bell 103 standard.
See Modem Response Messages, on page
Description
. Tests that your modem is working and configured correctly. If characters you type do not
A/

Appendix AT Commands

69.
Basic AT Commands
64