The best way to video call anybody from your BlackBerry
Skype is the de facto standard for voice and video calling, and as of recently, the replacement for Windows Live Messenger. Though it is an Android port, you'll find all of the important functions here.
On BlackBerry 10, you can send instant messages, pictures, videos, files, and make calls to anyone else currently logged onto Skype on any platform. You can even call out to regular phone lines, assuming your Skype account is topped up with some credit. Both front and rear cameras are supported. Skype can also haul in contacts to the native address book, making it easy to get in touch without having launch into the app first.