Congratulations, Sprint customers — you have access to Wi-Fi calling… but only if you own the Galaxy S4 mini or the Galaxy Mega. Engadget brings us word that Sprint will enable Wi-Fi calling in the coming weeks for both the S4 mini and the Mega, which will hopefully be the first of many devices to get this feature added. Wi-Fi calling essentially lets you have unlimited calling as long as you can hook up to a Wi-Fi network, which is why some carriers have been reluctant to allow it since it could cut into their voice service revenues. Of course, T-Mobile has had Wi-Fi calling available in some capacity for years so Sprint isn’t exactly breaking new ground here. All the same, it’s a nice feature to have.