‘WiFi Calling’ is the most underrated feature of the new iOS 8 system—in fact it was so underrated, Apple didn’t get to highlight it on stage during its Worldwide Developer Conference (WWDC) on June 2nd, 2014.

T-Mobile, who was recently acquired by Sprint, immediately jumped on the bandwagon—announcing that they will support the feature, which will enable users to place a phone call over a WiFi enabled network instead of using a cellular network. Useful and cheaper, for those who travel abroad internationally, or live in areas of poor reception.

“You don’t need to activate anything or download a special app. Just connect to any available WiFi network, check that WiFi Calling is ‘turned on’ on your capable smartphone, and make a call (or send a text, email, etc.) as you normally would.” But why wouldn’t Apple release a statement about his?

WiFi calling is not new, it’s basically VoIP. Service plans such as Vonage, Magic Jack, Ring Central, Jive…and many more offer WiFi, or internet enabled calling. In fact, there are over one-thousand apps in both Andoid’s Google Play and Apple’s App Store that support VoIP communication services. Many users are already switching their phone plans, or mobile service providers to accommodate the switch.

WiFi enabled VoIP communications are already available between all iOS and OS X users through FaceTime, and iMessage, but this would be a whole new concept to many users. Too bad Apple left it out in its WWDC conference. (Then again—who calls anyone anymore?)