Netum C830 - Beep Volume and Key Mapping

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Beep Volume
By scanning the appropriate barcode below will change the beep volume.
Function Key Mapping
When Function Key Mapping is enabled, function characters are sent over the keypad.
$BUZZ#1
*High Volume
$BUZZ#
Low Volume
$BUZZ#0
Mute
$KEY#MO
*Disable Function Key Mapping
$KEY#M1
Enable Function Key Mapping