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Sorry, I can't hear you, the line's VoLTE

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John Dumlao
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The introduction of VoLTE saw EE fall from the top spot in RootMetrics' network ratings for call reliability.

Three and Vodafone beat EE in the first half of last year for the reliability of calls – and both are relative laggards in implementing VoLTE, which takes voice calls off the circuit-switched network and onto the VoIP protocols.

VoLTE, which as the name (Voice over Long Term Evolution) suggests requires a 4G (LTE) network, was itself late, and even later in the UK because of the handbags over spectrum.

"Everybody sees the challenges switching to IP," Scott Stonham, general manager for RootMetrics in Europe, told us.

You can decide to roll out gradually or go full throttle and do it all at once.

EE now shares voice category bragging rights with Three nationwide and in England and Scotland, while Three is a clear leader for call reliability in Wales.

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John Dumlao
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