Huawei Y5 II - What You Can Do During a Call

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What you can do during a call
Touch
to place the current call on hold, and then touch again to
resume the call.
Touch
to start a three-way call. Before you use three-way calling,
make sure you have subscribed to this service. For details, contact your
service provider.
Touch to mute or unmute the microphone.
Touch to use the speaker.
Touch to end the call.
Touch to display the dialer.
Touch to display your contacts.
Touch to write a note.
To return to the call screen, flick down from the status bar to open the notification
panel, and then touch
Current call .