Settings; Airplane Mode; Device - ZTE Z718TL Mode D'emploi

Settings

Airplane mode

In areas where the use of mobile devices is restricted,
you can activate the Airplane mode to disable phone
function but still use other functions of your phone such
as calendar, music and games. You will not be able to
make/answer calls, send/receive messages in
Airplane mode.
1. On the home screen, touch
Settings > More.
2. Slide the ON/OFF button for Airplane mode to
turn it on or off. The phone will turn off all wireless
connections when Airplane mode is enabled.
Tip:
On the home screen, you can press and hold the
Power key, then select Airplane mode.

Device

Sound & notification profiles
On the home screen, touch
Settings > Sound & notification.
Phone ringtone: Select the ringtone to sound when
you receive a call.
Default notification ringtone: Select your default
notification ringtone.
Notification mode: Set the phone to vibrate or play a
ringtone for incoming calls.
Touch other sounds.
and then touch
20
and then touch