HP 9895 (US/CAN), 6912 (US) Section Four AT Command Set, Executing Commands, AT Commands & Format

Section Four - AT Command Set

4.1 Executing Commands

Your modem is in Command Mode upon power-on and is ready to receive and execute “AT" commands. The modem remains in Command Mode until it makes a connection with a remote modem.

4.2 AT Commands & Format

All commands must begin with the AT prefix, followed by the command letter and ended with the ENTER key. All default settings are printed in bold text. Spaces are allowed in the command string to increase command line readability but are ignored by the modem during command execution. All commands may be typed in either upper or lower case, but not mixed. A command issued without any parameters is considered as specifying the same command with a parameter of “0”.

Example: ATL [ENTER]

This command causes your modem to lower its speaker volume.

All default settings are printed in bold text.

CommandFunction

A	Answer incoming call
A/	Repeat last command. Do not precede A/ with AT or follow with ENTER
B0	CCITT mode @ 1200 bps
B1	Bell mode @ 300/1200 bps
Dn	0 - 9, A-D, # and *
	L	last number redial
	P	pulse dial
	T	tone dial
	W	wait for second dial tone
	,	pause
	@	wait for five seconds of silence
	!	flash
	;	return to Command Mode after dialing
	$	wait for AT&T "bong" tone
E0	Echo disabled
E1	Echo enabled

+++switch from Data mode to Command Mode

H0 Modem goes on-hook

H1 Modem goes off-hook

I0 Returns default speed and controller firmware version

I1 ROM Check sum code

I2 ROM test

I3 Returns default speed and controller firmware version