LG VS950 - Manual (Page 57)

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Calls
To turn the speakerphone on or off
Tap Speaker .
The light bar on the Speaker button illuminates blue to indicate that
the speakerphone is on and the sound from your call is played through
the phone’s speaker on the back of the device.
While viewing the in-call screen, you can turn the speakerphone off by
tapping Speaker again.
The speaker is turned off automatically when the call ends.
WARNING!
To avoid damage to your hearing, do not hold the phone against your ear when the
speakerphone is turned on.
To switch between a Bluetooth device and the phone
When a Bluetooth device is paired and connected to your phone, you can
conduct calls on it for hands-free conversations. During a call, you can easily
switch between using the Bluetooth device and your phone.
When using the Bluetooth device during a call, the Ongoing Call notification
icon is blue in the Status Bar (the icon is green when using the phone).
Tap Bluetooth to switch the call from the headset to the phone, or
vice versa.