Here you can find instructions to make video calls on Apple devices

Apple iPhone 13 mini Apple iPhone 13 mini
Apple iPad 9.7 (2018) Apple iPad 9.7 (2018)
Apple iPad 9.7 Apple iPad 9.7
Apple iPad Pro 11 Apple iPad Pro 11
Apple iPad mini (2019) Apple iPad mini (2019)
Apple iPad 10.2 Apple iPad 10.2
Apple iPad Air (2019) Apple iPad Air (2019)
Apple iPod Touch (2019) Apple iPod Touch (2019)
Apple iPad Pro 10.5 Apple iPad Pro 10.5
Apple iPod touch 5th generation Apple iPod touch 5th generation
Apple iPod touch 4rd generation Apple iPod touch 4rd generation
Apple iPad Pro 9.7 Apple iPad Pro 9.7
Apple iPhone SE Apple iPhone SE
Apple iPad Pro Apple iPad Pro
Apple iPhone X Apple iPhone X
Apple iPhone 8 Plus Apple iPhone 8 Plus
Apple iPad 2 Wi-Fi + 3G Apple iPad 2 Wi-Fi + 3G
Apple iPhone 5c Apple iPhone 5c
Apple iPad 3 Wi-Fi + Cellular Apple iPad 3 Wi-Fi + Cellular
Apple iPad mini Wi-Fi Apple iPad mini Wi-Fi