Farallon Communications 612 Benutzerhandbuch

All instructions to a modem are sent using AT commands—
commands that begin with the letters AT. The AT tells the modem, 
“Attention! A command is coming.” In the AT command set, the AT 
is followed by one or more commands and ends when you press the 
Return key. Pressing the Return key tells the modem that the 
command string is complete and should be executed. AT commands 
are normally issued by your communications software, but you can 
also send them directly from your keyboard. Refer to your 
communications software manual for information on how to issue 
the AT commands in command mode. 

Follow these steps to use AT commands:

1.

Launch your communications software. Be sure your communi-
cations software is in terminal mode.

2.

Be sure the ISDN modem is in command mode so that it inter-
prets your commands. 

When your computer is powered on, the ISDN modem 
automatically star ts in command mode. If you have recently 
used the ISDN modem to make a call and have not yet 
disconnected, type +++ to switch to command mode.

3.

Type 

AT <commands>

Then press the Return key.

After completing its tasks, the Netopia ISDN Modem sends a 
message, called a result code, to the screen.

After a command is sent and executed, the Netopia ISDN Modem 
sends a “result code” back to the computer. The result code tells 
the computer if the command was successfully executed and may 
include other information. For example, OK or ERROR may appear