But you need to make some software updates to these two devices from Samsung. You can also do video calling on the Galaxy S6 and Galaxy S6 Edge once updates are available next week.
To update your Samsung device with Video Calling, you can go to Settings > “About Device” > “Software Update”. By the end of the year, you’ll be able to make video calls on three more of its video calling-enabled devices, for a total of seven.
T-Mobile Video Calling works on smartphone’s dialer. There’s no need to search, download, configure and register additional apps. To make a video call, T-Mobile users can choose either the video call button or voice call button.
On devices with T-Mobile Video Calling, small camera icons appear next to contacts with devices able to receive video calls. If the person you’re calling can’t take video calls, the video call icon is greyed out. “We’re working with others so you can eventually enjoy built-in video calling across wireless networks,” said T-Mobile.
You can make T-Mobile Video Calls to and from capable devices on any LTE connection as well as over Wi-Fi. T-Mobile Video Calling moves seamlessly between LTE and Wi-Fi. If you move off LTE or Wi-Fi to a slower connection, your video call seamlessly switches over to a voice call. If you move back to LTE or Wi-Fi, switch it back to video with a single tap.