AT Commands
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AT#A Universal Remote Access
This command allows a controlling modem to take control of a remote modem. All commands of
the remote modem(s) are available to the controlling modem, with the exception of the Test
commands. (DES keys can be changed and will take effect from the next connection made to the
modem.)
To initiate remote access, the user of the controlling modem should:
• Type: **** (the remote access sequence)
(with 1.0 sec guard time before and after the ****)
If #A2 has been set, after receiving the remote access sequence, the remote modem will send
back a request to enter password. The password it is expecting is its security menu
password (see #S command). If no password has been defined, remote access is disabled.
If the password you type is incorrect, the following message appears:
Incorrect. Please try again
You must re-initiate the remote access by typing the remote access sequence again before
you can re-type the password.
If the password you type is correct, the following message will be displayed:
Remote control enabled
To terminate the remote control, the user of the controlling modem should, while in on-line state:
• Type: ATO <E>
Guard time can be adjusted by changing the value in S Register 66 (default 1 second). The remote
access character is specified in S Register 67. The default value is 42 — the asterisk (*) character.
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AT#A2 is only available if your modem supports the security menu (#S).
Options
AT#A0 Prevent remote access
AT#A1 Allow remote access
AT#A2 ■ Allow remote access with security password
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If your product does not have security features, the default is # A0
See Also
**** Remote Access Sequence
#S command Security Menu
S Register 66 Remote access guard time
S Register 67 Remote access character