Instructions

 Press the "Lower Volume" on the left side of the phone to mute the phone calls.
 In the mute mode, you can still answer the call while you have not rejected the
call.
Respond with SMS
You can reply with SMS if you reject a call.
 Go to "Call" >
"Seetings" > "Reject with SMS".
 You can quickly respond to the incoming calls with a default text message. You
could also customize the texts on your own.
 When your phone rings, tap "Message", and select a default response or click
"Customize" to write a text message by yourself.
Call Forwarding
When you are unable to answer the call, you can transfer to another number.
 Go to "Call" >
"Seetings" > "Carrier Call Settings" > "Call Forwarding".
 Select a call forwarding condition such as "When busy", "When unanswered"
and "When unreachable", and enter the number to activate the call forwarding.
 Call forwarding service will be varied as it is based on by the carrier.