To video call from Samsung to iPhone, follow these steps: 1. Open the Phone app on your Samsung device. 2. Tap the Contacts icon in the top left corner of your screen. 3. Tap the name of the person you want to video call and then tap Video Call at the bottom of their contact card. 4. Tap the Phone icon in the top right corner of your screen to start a video call. 5. Tap the FaceTime icon in the top left corner of your screen to start a FaceTime call. To video call from iPhone to Samsung, follow these steps: 1. Open the Phone app on your iPhone. 4. Tap FaceTime in the top right corner of your screen to start a FaceTime call.