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1O1O is proud to present you VoLTE, which stands for voice over LTE data and is a technology which brings much improved voice quality.

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Establish significantly faster voice-call connections. Making a traditional 3G call connections takes an average of around 7 seconds but can be done in 1 second with VoLTE.

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With 1O1O’s broad LTE coverage, voice quality and coverage is much better using VoLTE.

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Ensures high-definition quality video calling (applicable to Android handsets only). Under VoLTE connection, the visual quality is clear without any grids, its resolution reaches up to 640 x 480 pixels, while for traditional video call connected via 3G network, the resolution is just 176 x 144 pixels.

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Continue to enjoy using data for other functions such as browsing or downloading an app while on a call, which is handy for multi-tasking.

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VoLTE also offers the ability to seamlessly switch between LTE and Wi-Fi Calling, without the call cutting out.

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Enjoy instant switching between voice and video calls (applicable to Android handsets only) with one click. Avoid the need to wait for network switching from 3G to 4G and better life is usually improved.

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Use a VoLTE enabled handset

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Have the handset software upgraded to latest version
(Applicable to Android handsets)

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Activate the VoLTE function of the handset

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Or let us service and help you directly by bringing your handset to 1O1O Corporate Service Center

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Call the 1O1O Corporate Service Hotline at

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or visit our 1O1O Service Center for details.