Black Box MD1641A Manuale Utente

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CHAPTER 7: Callback Security and Remote Configuration
Failed Password Attempts (S26)
S26 counts the number of times there has been a failed password
attempt. For example, if you entered 
ATS26?
and the message 003
were displayed, that would mean someone had failed three times to
gain access to your modem using its password security system.
Units:
Failed attempts
Range:
0-255
Default:
0
Local Inactivity Timer (S29)
S29 defines the amount of idle time that can elapse between AT com-
mands after the SETUP password has been entered. If this timer
expires, the LOGIN and SETUP passwords will have to be re-entered.
S29 only takes effect when the modem has been sent a 
#DB1
command,
which secures the modem from local and remote configuration or
dialing (i.e., no AT commands can be sent until the LOGIN and SETUP
passwords have been entered).
Units: Minutes
Range:
1-255
Default:
20