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The Samsung smartphone marks the fourth Sprint device to receive the free calling capability.
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.
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.
The carrier's "friends and family" program hit the 1 million customer mark in less than 40 days. Sprint CEO Dan Hesse calls it the foundation for a "innovation and marketing" platform.
The phone company hands millions to the US government in the largest-ever settlement over the opt-out-of-telemarketing registry.
Available immediately, the handset is a more budget-friendly approach to the flagship HTC One M8.
Dan Hesse, stepping down as chief of the US's third-largest wireless carrier after seven years, helped clear up Sprint's baggage. But the company still lacks a key essential: new subscribers.
One of the best phones of the year adds a stylus option, HTC is working on a GoPro-like camera and Samsung attacks Apple...again.
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.