GDC-480H Wireless Handset
User Guide
15
3 Using the Basic Features
Some buttons have multiple functions. In some cases, a button will activate one feature
when simply pressed and activate another feature when the button is pressed and held for a
little longer than 1 second. For example, turning the power ON and OFF is done using the
End & Power button. Pressing the button will end an active call, holding the button turns
power OFF. Buttons may also provide different functions depending on the state of the
phone; when idle the button may provide one function and when busy, the button activates a
different feature. Local phone features are generally accessed by a button with the handset
idle while system features are accessed when the phone is in the talk mode waiting to dial.
In many cases a dial code (a series of digits) is required to activate a feature. Since dial
codes are different for each system and may be changed through Admin, codes are
referenced by name. Code digits are available from your System Administrator, or perhaps
the Attendant.
3.1 Turning the GDC-480H ON and OFF
Your new Wireless handset operates on 1 Li-ion rechargeable batteries. When not in-use, it
should be turned OFF to extend the life of the batteries. Fully charged, batteries provide
about 15 hours of talk-time or about 120 hours of standby time.
To turn the power ON or OFF:
Power ON
1. Press and hold (2 second) the EndPower ( ) button to turn power ON; the
handset displays “Range Out” while searching for a base station. After the handset
locates a base station, the Antenna and RSSI icon displays
Power OFF
1. Press and hold (2 second) the
EndPower
( ) button to turn power OFF. After a
validation tone is received, the handset switches OFF.
3.2 Volume Adjustments
3.2.1 Adjusting the Audio volume
During a call, you can adjust the audio volume from the earpiece (level 1 to 6).
To adjust the audio volume:
1. While on a call, press the Up or Down arrow on the
Navigation
( ) button.
Or Press the Side button.
3.2.2 Adjusting the Ringer volume
You can adjust the ringer volume separately for internal and external calls (level 1 to 9).
To adjust the ringer volume level:
1) Press
the
Menu
( ) button to display the menu.
2) In the menu, use the
Navigation
( ) button to highlight Sound and press the
OK
( ) button; this displays the Sound menu.
3) From this menu, select Sounds using the Up and Down arrows of the
Navigation
( ) button and press the
OK
( ) button.
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