Volte vodafone

I am facing issue with Vodafone volte service in tphonep

Do you see volte icon at screen on t phone p?

This issue is not just with Vodafone Anup, we are facing this issue with all networks. Everytime you need to switch off and switch on the device, to appear Volte in ur device.

I have tried many method but not getting right response but some phone provide best feature for volte as redmi oppo vivo tecno etc