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RASFinder RF300E/RF310E User Guide
Command Editing
Always begin a command with the letters AT. Enter the entire command string in upper or lower case,
but do not mix cases within the command string. The AT command is not executed until you press
ENTER. Use the BACKSPACE key to erase the previous command character. It will not erase the AT
characters once they are typed. If your keyboard has no BACKSPACE key, use CTRL+H. (You can
change the character recognized by the modem as BACKSPACE to any other ASCII character by
changing register S5.)
Press CTRL+X to cancel an entire command that has been typed but not yet executed. This also
clears the command buffer. The effect is the same as backspacing the command, only quicker.
The modem stores characters entered in a command in its command buffer until they are executed
by pressing ENTER. The command buffer's capacity is 40 characters. The attention characters (AT)
do not count toward the 40-character command line maximum. You may use spaces for increased
readability when typing a command. Spaces are not stored in the command buffer, and they do not
count towards the 40-character command line maximum. Special characters, such as hyphens and
parentheses, are not allowed.
If you exceed the 40-character limit or type invalid characters, the command buffer is automatically
erased and an ERROR message appears. Retype the command within the 40-character limit, using
only the allowed characters.
The commands in this chapter are organized by function. Abbreviated commands are listed on the
next page by function along with a short description and page numbers that refer to a more detailed
description, immediately following this list.
Topic
Dialing Action, p. 127
Dial Modifiers, p. 128
Phone Number Memory, p. 128
Configuration Storage & Recall, p. 129
Modem Responses (Result Codes),
p. 130
Online Connection, p. 133
166
Command
Description
D
Dial
H
On-hook/off-hook
L, P, T, W
Command accepted, but has no function
,
Command accepted, but has no function
;
Command accepted, but has no function
! $ @ ^
Command accepted, but has no function
&Z
Store a phone number
DS
Dial a stored number
&W
Store configuration
&F
Load factory default configuration
Z
Reset modem
&Y
Select stored configuration on power-up
E
Echo command mode characters
Q
Result codes: enable/ disable
V
Result codes: verbose/terse
\V
Protocol result code
X
Result codes and call progress
&Q
Select asynchronous communications mode
B
Answer tone
C
Carrier control
RF300E/RF310E
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