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Smart Voice Service
Version 2.0
3
©WTT HK Limited 2017
4.1
C
HANGE
R
INGTONE
............................................................................................... 22
4.2
C
HANGE
V
OLUME
.................................................................................................. 22
4.2.1 Adjusting the Ringer Volume ............................................................................. 22
4.2.2 Adjusting the Handset Volume ........................................................................... 22
4.2.3 Adjusting the Speaker Volume ........................................................................... 22