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x TTY VCO: Users who can talk, but cannot hear, may use this mode to talk
through the phone and receive responses via text messages.
Set DTMF Tones
You can set the length of Dual-tone multi-frequency (DTMF) signal tones.
1. Touch the Home key > > (in the top search field) > Settings > Call
settings > DTMF tones.
2. Touch Normal or Long.
Set Display Duration
You can enable or disable the display duration.
1. Touch the Home key > > (in the top search field) > Settings > Call
settings.
2. Check Display duration to enable or disable the display duration.
Set Proximity Sensor
With proximity sensor turned on, the screen will be turned off to save power when
you answer a call.
1. Touch the Home key > > (in the top search field) > Settings > Call
settings.
2. Check Turn on Proximity Sensor.