In-Call Screen Layout And Operations - HTC U11 User Manual

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Place the phone face down on a level surface. (You can do this even on the lock screen.)
Note: If Flip to mute option in Sound & notification settings is set to Mute once, HTC U11 will still ring
when there are subsequent incoming calls

In-Call Screen Layout and Operations

While you're on a call, you will see a number of onscreen options.
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Mute : Mute the microphone during an active call. Tap again to unmute the microphone.
Note: If Mute is activated, the speaker mode is deactivated.
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Add : Tap to add a call and initiate a conference call (3-way call).
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Speaker : Route the phone's audio through the speaker (On) or through the earpiece (Off).

Activate Speaker to route the phone's audio through the speaker. (You can adjust the
speaker volume using the Volume button.)

Deactivate Speaker to use the phone's earpiece.
Warning: Because of higher volume levels, do not place the phone near your ear during speakerphone
use.
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Dialpad : Use the onscreen dialpad to enter additional numbers, for example, an extension or
access code.

For example: When you call your bank's 800 number, use your dialpad to enter your account
number and PIN.
Phone Calls and Voicemail 95