Entering A Command; Omitting A Parameter In A Command Line; Repeating A Command - Compaq Armada 7300 Command Manual

N :
OTE
The modem ignores all characters
that precede AT.
N :
OTE
A maximum of 255 characters
can follow the AT command. The
modem doesn't count the AT
prefix or carriage return (<cr>)
character. It does count, but
doesn't act on, punctuation such
as quotation marks and tildes. If a
command sequence exceeds the
255-character maximum, the
modem does not execute any part
of the command line and returns
an error message after the <cr>.
If this occurs, reentering the
command within the 255-
character limit executes the
command.
N :
OTE
Punctuation in the telephone
number does take up space set
aside for command storage.
N :
OTE
Word codes are preceded and
followed by the characters set in
registers S3 and S4, which are
typically the factory defaults: a
carriage return and a line feed
(LF) control character,
respectively.
: 3
(cont.)
+,7( $3(5
.
CHAPTER 1— U
. SING
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Entering a Command

.
.
Use the following guidelines when issuing modem commands:
.
N
.
When using AT commands, start every command line (except the A/ and +++ commands)

.
with the attention (AT) code characters; otherwise, the modem will not execute the
.
command.Compaq Hardware
.
.
N
Type commands following the AT prefix in uppercase or lowercase letters or a combination

.
of both.
.
.
N
Always type the AT prefix in the same case (not At or aT).

.
N
. Enter telephone numbers with or without punctuation; for example,

.
(123) 456-7890 or 1234567890
.
.
.
Editing and Executing a Command
.
.
If you make an error while typing a command, simply backspace over the mistake then retype.
.
. You cannot backspace over the AT prefix because it is interpreted immediately after it is typed.
.
To execute a command line, press the Enter key. (Pressing the Enter key tells the modem to
.
.
process the command line.)
.
.
.

Omitting a Parameter in a Command Line

.
.
If you enter a command that normally includes a numeric parameter, such as ATHn, without the
.
numeric parameter, the missing parameter is assumed to be the default parameter.
.
.
For example, the Hn (hang-up) command can have a numeric parameter of zero (H0), which is
.
the default, or of one (H1); however, if the parameter is missing, ATH plus the Enter key is the
.
equivalent of ATH0 plus the Enter key. This rule does not apply to the D (dial) command.
.
.
.

Repeating a Command

.
.
You can repeat the last command line issued by entering the A/ command. Because it also
.
. repeats the AT prefix and the Enter key function, you are not required to enter the AT prefix or
.
press the Enter key when repeating this command.
.
.
The last previously entered command remains in the command buffer until the modem is reset or
.
power to the modem is turned off. Both actions clear the buffer and make the A/ command
.
invalid since there is no command for the modem to repeat.
.
.
.
Understanding Result Codes
.
.
A result code is modem response to a command and may be issued in either of two possible
.
formats: words (the long form, also known as verbose) or numeric characters (the short form,
.
. represented by digits). The result code format is set using the Vn command.
.
V1 (default) for words.
.
.
.
.

M C
ODEM OMMANDS