This means no need to use Skype or another third-party service, once the software update hits your phone. This gives your phone a more straightforward method to video call others, like Apple’s Facee (though the rollout is far more limited in scope). You’ll need to keep in mind that any data used during video calls over T-Mobile’s network counts against your monthly usage, unlike the limitless offering of Music Freedom. As always, you can use -Fi to avoid eating into your data allotment.  so, you’ll need to use Samsung’s stock dialer app instead of one of the many alternative dialer applications in the ay Store for the feature to work. y this matters: T-Mobile’s new video calling feature is another way the company can say it’s taking a more consumer-friendly approach for its customers. Recently the carrier announced Advanced Messaging, which brings iMessage-style features to SMS messages.