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COURIER HIGH SPEED MODEMS
Alphabetical Command Summary C-3
DIP Switch 9 Response to +++
OFF Modem goes on hook (hangs up), sends NO
CARRIER result code (factory setting)
ON Modem maintains connection (Online-Command
mode), sends OK result code
The factory setting (OFF) forces an automatic disconnect when
you issue +++. An advantage of this is that you are not likely
to inadvertently run up an all-night phone bill.
Set DIP switch 9 ON if you want the modem to respond to +++
by entering Online-Command mode, enabling it to execute
commands and return online. (See the O command later in this
appendix.)
> If you know the modem you are calling is frequently busy,
include the Repeat command in the Dial string, as follows:
AT > DT 1234567 <Enter> or
AT DT 1234567 > <Enter>
The modem enters Repeat mode, dials the number, waits 60
seconds for a carrier (default), and hangs up. Then after a two-
second pause, it redials.
The cycle continues until the modems connect or the modem
reaches a maximum of 10 attempts.
A Force Answer mode when the modem hasn't received an
incoming call.
A/ Re-execute the last issued command. A/ doesn't take the AT
prefix or a Carriage Return, and can be used to redial.
A> This command combines the features of both the A/ and >
commands. The modem enters Repeat mode and redials the
Dial string in the command buffer. Like the A/ command, A>
does not take the AT prefix or a Carriage Return.
AT Attention command prefix. Use AT alone to test for the OK
result code. AT must prefix all commands except A/, A> and
+++.
Any Terminate the current dialing operation resulting from an
key issued Dial command; terminate Repeat mode (> or A>).