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Express Modem 14.4 ver 1.0
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Express Modem 14.4 ver 1.0.rsrc
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TEXT_128.txt
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Apple Express Modem AT Commands
From Apple Computer’s “Express Modem AT Commands” document on the
Express Modem 1.0.4 disk. Converted to DisplayDA by David Good to
DOCMaker by Chris Larson
Note: “Default” settings are in Bold for easy reference.
Moving between command and on-line states
When the modem is turned on or after reset, the modem always
goes to command state. It enters on-line state after successfully
making a connection with a remote modem, either when answering
or originating a call. While the modem is in on-line state, you can
take control of it again (go back to command state). When you
return to command state from on-line state, the modem goes to
local command state, which allows you to maintain the connection
and enter commands.
To go to local command state, type the escape sequence +++.
Do not type any other commands or make entries before or after
the escape sequence for a period equal to the guard time set in
register S12 (normally one second). The modem will display OK.
To go back to on-line state, type ATO.
To hang up, type ATH.
AT command set
AT refers to the command prefix (attention sequence) that
precedes each command to the modem. With the exception of A/
all commands must be preceded by AT and end with a carriage
return (<CR>).
Special Commands
A/ Repeat last command
The A/ command instructs the modem to repeat the last
command line. A command line termination character <CR>
is not required for the execution of this command (that is,
the command is executed as soon as the slash is typed).
+++ Return to command state (escape sequence)
The escape sequence is used to force the modem back to local
command state from on-line state. Do not type any other
commands or make entries before or after the escape sequence
for a period equal to the guard time set in register S12
(default is one second).