OnePlus has announced that their 2015 flagship killer smartphone OnePlus 2 will be getting the VoLTE support in the next quarter. Though OnePlus has not mentioned an exact date for the rollout of this feature.
Reliance Jio telecom network launch has disrupted the Indian smartphone market as the network runs on full LTE network with full VoLTE support. Since then, OnePlus 2 users were unanimously asking for VoLTE support on their smartphone and the good thing is OnePlus has listened to them.
As for OnePlus One and OnePlus x, these smartphones will not be getting the VoLTE support and the users of these smartphones are simply out of luck. Stay tuned for the latest updates.