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Can open/close prompt tone
²
menu→setting→contextual model→normal mode
→personal setting→intelligent call alert
Can open/close intelligent call alert
attention：
contextual model include normal mode, mute mode，
conference mode and outdoor mode. These mode can
be operated except mute mode.
If you select mute mode, all incoming call ring, SMS
and power on/off ring become voiceless.
²
Hold "0" key to open hand-free function when
the mobile phone is standby.
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