Can't used Volte service on airtel sim.

[12225]

Can't used airtel Volte service in India on Sony xperia xa1 plus hand set due to software upgradation! Please do the needful as early as possible. 

[Lord_viridis]

It's not up to Sony to enable volte on a network.

The networks control which devices and firmware versions are allowed to use their volte service.

[12225]

Didn't sure