HP Brio 81XX hp brio 81xx, advanced setup guide - Page 49

Basic AT Commands

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4 Business Communications Options Basic AT Commands 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. See Modem Response Messages, on page 54. The following table lists the basic AT commands. Command +++ ATA A/ AT ATBn Description Escape characters used to switch between Data mode and Command mode. In either case the computer stays connected to remote modem. Manually answers incoming calls. Modem does not answer the telephone. Repeats the last command line executed. Attention. Begins each command line, except A/. Tests that your modem is working and configured correctly. If characters you type do not appear on your screen, your modem is not configured properly. 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. 49

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49
4
Business Communications Options
Basic AT Commands
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.
See Modem Response Messages, on page 54
.
The following table lists the basic AT commands.
Command
Description
+++
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
A/
. Tests that your modem is working and configured correctly. If characters you type do not
appear on your screen, your modem is not configured properly.
ATB
n
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.