Hp Pavilion Desktop xv886 PC Manual de usuario descargar pdf (Pagina 3)

Section Three - AT Command Set

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.

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.

Command

Function

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 @ 300/1200bps

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 Checksum code

I2 ROM Test

I3 Returns default speed and controller firmware

version

I9 Returns country code

L0 Low speaker volume

L1 Low speaker volume

L2 Medium speaker volume

L3 High speaker volume

M0 Speaker always off

M1 Speaker on until carrier detected

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