voice-over-LTE

Following the introduction of Voice-over-LTE technology with the iPhone 6 and 6 Plus, which increases call quality by routing calls through an LTE network opposed to last generation 3G networks, US carriers have experienced a big increase in VoLTE calls. That’s according to a new report from Newfield Wireless that highlights a decrease for calls over 3G by about one-fifth compared to previous generation iPhones and other LTE-capable devices:

The majority of voice calls made on other 4G-enabled devices are currently routed through legacy 2G and 3G networks, due to the fact that not all networks and devices are optimised to deliver next-generation voice services. iPhone 6 devices are VoLTE-compatible and as a result, U.S. networks have experienced a surge in VoLTE calls since the September launch.

The report also shared some other data points from its research noting a few stats for iPhone 6 and 6 Plus uptake compared to previous generations:
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A new set of job listings noticed by LightReading continue to show Apple’s focus on implementing VoLTE, or voice-over-LTE, support for including high quality call quality on new iPhones.

Specifically, the job listings seek both a Cellular Systems Protocol Engineer with hands-on experience in wireless technologies including VoLTE and an iOS Wireless Communication Software Engineer with “SIP, RTP, and VoIP related protocols”, showing the company is continuing to beef up its expertise around the technology.

9to5Mac first reported that Apple is targeting voice-over-LTE support for iOS 8 and future iPhone models earlier this year in April: 
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