User`s guide

Modem 3600
8-1
Chapter 8
Security
The Modem 3600 series provides three features to assure secure operation
of the modem. These features are front panel password protection, auto
callback, and secure mode of operation. Front panel password protection is
discussed in Chapter 4.
Two levels of major security operation are available: high and low. The AT
commands for each level are explained below.
IMPORTANT: Security requires that you have available your “superuser”
password, explained in the “Superuser” section on page 8-6 and in the
“Setting Passwords $Pn=pw$pw” section on pa ge8-8. Systems adminis-
trator functions cannot be accessed without this password. If you forget
the superuser password, contact Technical Support. Refer to “Calling
Technical Support” section on pa ge12-2.
Autocallback Security
Autocallback is an additional security feature that is separate from Low
and High Security. Autocallback forces an answering modem to dial the
selected autodial (*AUn) telephone number after answering a call, holding
the line for one second, and then disconnecting. When autocallback is
enabled the modem will not train on a direct call. Access autocallback via
Main Menu #5 on the LCD. Refer to Chapter 4 for further information.
S72 enables/disables autocallback. S78 determines the delay in seconds
before autocallback is initiated.