How to block, mark as spam, or unblock phone numbers on Doogee devices

Doogee S55 Doogee S55
Doogee X70 Doogee X70
Doogee S70 Doogee S70
Doogee S70 Lite Doogee S70 Lite
Doogee S55 Lite Doogee S55 Lite
Doogee BL5500 Lite Doogee BL5500 Lite
Doogee S80 Doogee S80
Doogee S80 Lite Doogee S80 Lite
Doogee X10S Doogee X10S
Doogee X11 Doogee X11
Doogee X80 Doogee X80
Doogee X60 Doogee X60
Doogee Y7 Plus Doogee Y7 Plus