You can set who you want to answer the phone in (priority number group) of (profile), but you must first group the phones you want to answer and select the group, and then when people in this group call, your phone will ring. Conversely, other incoming calls will not ring, but will be recorded on the mobile phone.
If you don't want to answer anyone's phone at night, you can set the situational mode to start at a certain time and set the priority group, so you don't have to choose the priority group frequently. ? Although it can't block incoming calls, the mobile phone has no other response except the flashing screen (I have fully tested the ringtone and vibration).