How to set up the OPPO Ace2 model to reject incoming calls?

When using the OPPO Ace2 mobile phone, you can reject incoming calls that you do not want to answer. When the call comes:

1. When the phone is unlocked, click the red "hang up" icon to reject the call. Answer the call, or click the "SMS" icon to reject the call and reply to the selected text message;

2. When the phone is locked, press and hold the red "hang up" icon and slide up to reject the call, or press Swipe up on the "SMS" icon to reject the call and reply to the selected text message.