5634BIF User’s Manual
11
you press Enter, your modem executes the commands and returns to command mode, so
you can type your next command line.
2.6 Omitting a parameter
Some commands require a numeric parameter such as 0,1, or 2. For example, the
Q
command determines whether your modem sends a modem response after executing a
modem command line :
Q0
tells the modem to send responses.
Q1
tells the modem not to send response.
If you type
ATQ
and press the Enter key without typing a parameter of
0
or
1
after the
Q
,
it's like typing
Q0
and the modem will send modem responses.
2.7 Repeating a command line
For your convenience, the last command line you execute remains stored in the modem's
memory until you type a new command line and press the Enter key. If you want to re-
execute the last command, type
A/.
When you want to use the
A/
command, you don't need to preface it with the AT
characters or end it by pressing the Enter key. Just type
A/
to have your modem
automatically re execute the last command line.
The
A/
command is particularly useful when you want your modem to re-execute a lengthy
command line or redial a number that was busy.
You can continue using
A/
to automatically re-execute the last command line until you
type a new command line that begins with AT or reset your modem, or until your modem
loses power.
2.8 Modem responses
When
you send a command to your modem, it sends a response to your computer. For
example, if you send a modem command to your modem, the modem should respond with
OK
. You may never see these responses, however because certain communication
software will intercept them before they can be displayed on your computer screen.
This section describes the modem responses returned by the modem when you
communicate directly with the modem. If you will be using a communication software
program to make data calls, you may not see these responses because your software
program will probably intercept the responses.
Response sets
Modem responses can come from one of five response sets. These response sets are
designed
X0
,
X1
,
X2
,
X3
, and
X4.
The response sets determine which modem responses are sent by the modem. They also
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