User manual

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Go to [Settings] > [Privacy] > [Block & Filter] > [Block Calls] or Go
to > Tap in the upper right corner > [Block & Filter].
You can set call blocking rules by yourself:
 Block All Incoming Calls: You won't receive calls anymore unless
there are calls from VIP contacts or white-listed numbers.
 Block Numbers that Begin with Specific Digits.
 Block Unknown Incoming Calls: Please be aware that when you turn
this function on, you might miss some important phone calls.
 Block Unknown Numbers by Location-based Attribution: You can
block numbers from specific locations.
 Block One-ring Incoming Calls and No-number Calls: This is for
unknown numbers only.
Block Messages
Go to [Settings] > [Privacy] > [Block & Filter] > [Block Messages].
You can set the message blocking rules on your own.
Keywords for Spams
Messages from unknown numbers containing particular keywords that
you have set will be recognized as spams.