It's as easy to use as selecting a contact from the "Viber Only" section of your contact list and then using the video button to start the call.
Ọ dị mfe iji dịka ịhọrọ kọntaktị site na "Viber Only" ngalaba nke kọntaktị kọntaktị gị, wee jiri bọtịnụ video malite oku.