Garmin NavTalk Owner's Manual page 65

Date and time are calculated directly from
satellite signals and cannot be changed. Refer to
GPS Reference, Section 6 for time options.
Control of backlighting is accomplished on
the System page along with Contrast adjustment
and the Power Saver feature. Backlighting is
important to efficient phone use at certain times of
the day, such as early morning, late evening and at
night. We recommend that backlighting be set for
"Always On" when powered by external power
sources such as AC or DC adapters and chargers.
Otherwise when operating on battery
power, set for the time normally required for
dialing or other phone functions you normally
use. When set for a specific time backlighting
will auto cancel at the expiration of the time set,
which begins after the last key press, but will
turn back on when an incoming call rings-in or
any button on the unit is pressed.
Extensive use of backlighting will cause a
significant reduction in battery life when powering
the NavTalk from the batteries only. Enabling the
'Always On' backlighting setting during charging will
significantly lengthen charging time.
Remote Command is a feature that allows
your NavTalk be be remotely queried by another
NavTalk or another DTMF capable device (i.e., a
PC Modem). This can only take place during an
"Active" cellular call. Remote Command can be
"Enabled" or "Disabled" according to the privacy
that you desire. When "Enabled" the NavTalk
will respond to any DTMF tones to "Transfer
Location" while in a call. If "Disabled" it will not
respond to these Tones. Remote Command is
password protected to prevent unauthorized
changing of the current setting.
The Time and Date Settings
are shown on Last Dialed and
Missed Calls Lists
Remote Command can be
enabled or disabled and is
protected by a
security password