•To activate the speakerphone feature, select Speaker. You can activate the speakerphone feature with motion. In Menu mode, select Settings → General → Gestures
→Putting down (Speaker call). Then, during a call, place your device on a table or a flat surface.
In noisy environments, you may have difficulty hearing some calls while using the speakerphone feature. For better audio performance, use the normal device mode.
•To turn off the microphone so that the other party cannot hear you, select Mute.
•To listen and talk to the other party via the headset, select Headset.
•To switch the current call to a video call, select 
→ Switch to video call.
•To remove noise from your background so that the other
party can hear you more clearly, select 
reduction on.
•To dial a second call, place the first call on hold and then dial a new number.
•To answer a second call, select New call when a call waiting tone sounds. The first call is automatically placed on hold. You must subscribe to the call waiting service to use this feature.
•To switch between the two calls, select Swap.
•To end the call on hold, select Swap → End call.
•To make a multiparty call (conference call), make or answer a second call and select Join when connected to the second party. Repeat to add more parties. You must subscribe to the multiparty call service to use this feature.
•To connect the current party to the party placed on hold,
select 
→ Transfer. You will be disconnected.
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