How can I do vedio calling on upgraded version of micromax unite2?

[AC Question]

I have upgraded my micromax unite 2(8gb) phone from android 4.4.2 to 5.0. But from the date of upgrade , I am unable to do vedio call on it? Anynody please help me.

 

[B. Diddy]

Welcome to Android Central! How were you making video calls before? Skype? Hangouts? Did the phone have a native video calling option?