VoLTE checker

You can’t received voice call without volte for lte phone you have to use app Jio Calling or Jio join App.

VoLTE stands for voice over LTE and it's more or less exactly what it says on the tin. It's voice calls over a 4G LTE network, rather than the 2G or 3G connections which are usually used in VoLTE.
The benefits of VoLTE are Superior call quality.
It will just check if you are device supports VoLTE or not.
++++++++++ Features +++++++++++
1. Check your phone is VoLTE / 4G
2. Enable VoLTE / 4G
3. Convert LTE to VoLTE by JIO Join App
4. Activate VoLTE / 4G network

Note:- This app only checks for VoLTE support. It does not add VoLTE support to your smartphone.
If you believe that your phone supports VoLTE but this app is showing it doesn't, then feel free to