Panasonic Toughbook CF-29LCQGCBM Reference Manual page 80

Modem
Concerning the setting for [System standby]
• Consider the approximate communication time and then set [System standby]. If the
time set for [System standby] elapses during communications, the communication
may be cut off.
• If [Never] is set, the computer will not enter the standby mode during
communications, but once the computer resumes, the power of the computer will
remain on while the user is absent.
While the computer is communicating via the modem, the computer may freeze when
entering the standby mode. If this happens, slide the power switch for four seconds or
more to forcibly turn off the computer.
When the Ring Resume function is being used, some time elapses before a
connection is established (equal to the time for the computer to resume). To allow the
computer to resume, set the "Call" to a larger value than a typical telephone call. If it is
not possible for the sending side to set a long "Call", set the "Number of rings until
answer" (with the software application that is able to maintain the condition to receive
telephone calls) to a small value.
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To display the setting for [System standby],
Select [start] - [Control Panel] - [Performance and Maintenance] - [Power Options] - [Power
Schemes].
NOTE
This function does not work when the computer is off or is in hibernation mode.
After operations are resumed from standby mode, the screen remains dark. The
former screen display will be restored when the keyboard, touch pad or touchscreen
(only for models with touchscreen) is used.
The computer cannot resume if a telephone is connected to the line of a modem (e.g.,
a PC Card modem) other than the internal modem.
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*1