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Sprint customers traveling overseas get a boon with the carrier's added Wi-Fi calling feature, starting with the Galaxy S4.
The wireless carrier is expanding its existing Wi-Fi calling and texting service with promises of more coverage in the home and in the air.
The low-cost waterproof smartphone joins a growing roster of devices capable of making phone calls over Wi-Fi.
The Samsung smartphone marks the fourth Sprint device to receive the free calling capability.
CNET editor Dong Ngo explains how Wi-Fi calling works with the latest smartphones, including the iPhone 6 and 6 Plus, and picks the top five routers that are best for this technology.
Sprint's new service lets subscribers use Wi-Fi hot spots to make phone calls and send text messages. The move should help improve coverage for Sprint customers, especially indoors.
iOS 8's support for Wi-Fi calling means that iPhone owners will finally get in on a feature that Android and Windows Phone owners have had for years.
AT&T exec Ralph de la Vega also says he expects customer turnover to remain near record-low levels in the current quarter.
The carrier has confirmed that the Google Nexus 5 will not support voice over a Wi-Fi network.
The Kirlian Device shines a light in different colours depending on Wi-Fi signal strength, allowing creator Luis Hernan to create paintings in light.