Welcome to the community!
Standard National Video Calls $1 per minute + 40¢ flagfall.
Facetime and WhatsApp will consume your Mobile Data Plan when Video Call Feature is used.
Let me know should you require further assistance.
Thanks for reaching out!
Could you please specify which type of video call you are pertaining to? Is it the Standard Video Call from your handset or you're pertaining to an application(s)?