samsung s4 mini enable volte

[amitkum1250]

I have samsung s4 mini I9195 i want to enable volte in my device i tried some custom roms like lineage 15, aokp etc... but it didn't enable volte..... my device only work on LTE network... PLEASE tell me is there any way to enable volte in my device.

 

[zevs12]

There is no way to enable volte since drivers are proprietary :/

 

[Henrik Jansson]

What does it means that drivers are proprietary?