Huawei P9 Lite - Manual (Page 64)

Tips and Tricks
57
Calling contacts when the screen is off
When the screen is off, press and hold the volume down button. When you hear the alert
sound, say the name of the contact you want to call. Your phone will automatically call
the contact.
Pocket mode
Enable Pocket mode to prevent you from missing important calls when your phone is in
your pocket. The call ringtone and vibration intensity will gradually increase when you
receive an incoming call.
Open Dialer. Touch > Settings in the Dialer tab and turn on the Pocket mode
switch.