According to Microsoft, the Luma 640 (and other recent Lumia) LTE variants support VoLTE. As Vodafone has begun the rollout of VoLTE, nationally for iPhones, are there any plans to support the Lumia 640 devices, and if so, is there a timeframe? Will the VoLTE service be available for pre-paid customers or is it limited to post-paid?
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