•Press OK-key and select the volume level
by pressing # or *
•press OK-key
•Stand-by
2.2.8.3.2 Base Ringer Volume
•Select Base by pressing # or *
•Press OK-key and key in System PIN Code
•Press OK-key and select the volume level
by pressing # or *
•Press OK-key
•Stand-by
2.2.8.4 HandSet Ringer Type
•Stand-by
•Press Down-key twice
• Press OK-key and Down-key three times
•Press OK-key and select the type number
by pressing # or *
•Press OK-key
•Stand-by
2.2.8.5 Background Light
•Stand-by
•Press Down-key twice
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