Zte A139+ User Manual page 42

Auto Update of Date and Time: This needs the network support.
Flight Mode: set the mode for a flight.
LCD Backlight: Set the parameter for the backlight.
Call setup
Call Waiting: When enabled, the network will notify you of a new call if a new
incoming call takes place during the current conversation. Please contact the
network service provider for detailed usage.
Call Divert: This service enables you to divert some incoming calls to other
preset numbers. Contact your service provider for details. Set diverts in different
conditions:
Divert All Voice Calls: Divert all calls unconditionally.
Divert If Unreachable: Divert calls when you are out of service.
Divert If No Answer: Divert calls when you are not able to answer the
phone within a preset period.
Divert If Busy: Divert calls when you are already on another call.
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