Boost Mode; Key Tone - Grundig GDT 400 User Manual

MENU OPERATION
3. Input the correct time using number key, the 12HR format is: hour/minute
(hour range: 01-12, minute range: 00-59), the 24HR format is: hour/
minute (hour range: 00-23, minute range: 00-59).
4.
Press » « key to confirm the setting.
Note:
If the input value is over the range, the handset will toot and can't store
the input value. Please input the correct setting again.

Boost Mode

It is possible to select different options of boost mode during a call with
receiver.
1.
Press » « key.
2.
Press »+« or »–« key to select "HS SETTINGS" and press »
3.
Press »+« or »–« key to select "BOOST MODE" and press
key.
4.
Press »+« or »–« key to select the desired option.
6.
Press » « key to confirm the setting.
Option
Off
ON-LOW
ON-MEDIUM
ON-HIGH
AUTO

Key Tone

You may set the key tone to "ON" or "OFF" when you press the keypad.
The default setting is "ON".
1.
Press » « key.
2.
Press »+« or »–« key to select "HS SETTINGS" and press »
3.
Press »+« or »–« key to select "KEY TONE" and press »
4.
Press »+« or »–« key to select "ON" or "OFF".
5.
Press » « key to confirm the setting.
Description
No boost mode access
During a call, press »+« key to access up to the lowest
boost level with receiver.
During a call, press »+« key to access up to the
medium boost level with receiver.
During a call, press »+« key to access up to the high-
est boost level with receiver.
During a call, (press and hold) »+« key to access up
to the highest boost level with receiver.
However, the handset will restore to normal volume
after phone off from boost level.
« key.
» «
« key.
« key.
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