Will I Be Able To Use Voice Services If I Switch Off Data On My Jio Sim?

You will be able to make or receive voice calls, video calls and also send or receive SMS even if data is switched off on your Jio SIM being used in a VOLTE phone.

For all LTE / 2G / 3G devices using JioCall App, the mobile data cannot be switched off as it will make the app offline resulting in unable to make or receive calls / SMS.