Instructions to make video calls on Blackview devices

Blackview A60 Pro Blackview A60 Pro
Blackview S6 Blackview S6
Blackview S8 Blackview S8
Blackview P6000 Blackview P6000
Blackview A10 Blackview A10
Blackview A7 Pro Blackview A7 Pro
Blackview A7 Blackview A7