Yes i know. But i want to communicate from wife phone in video chat to my Tablet ,like we do in Face Book chat .You can have the same account on phone, PC and tablet.
No, My wife has i phone i don't, so you mean i have to have also a phone #? . its not what i do in Face book ,she has her account and i have mine ,and we video chat and use the same Phone#If you have a different phone from your wife's then you just need a Whatsapp account set up on your tablet.