Even if you have a 4G enabled smartphone, it is not guaranteed that VoLTE will work on it. VoLTE requires a specific hardware for it to work and even if the hardware supports it, sometimes manufacturers disable it on the software front since the feature was not supported until recently - means our mobile operating system too should support it. To check whether your handset has VoLTE or not, head over to call settings and look for VoLTE or HD calls option.

VoLTE indeed is a useful feature and has already been adopted by majority of population outside of India. However, before Reliance JIO, the feature was non existent in the country and no other network operator supports the same. If you are someone whose entire circle is using Reliance JIO its does make sense as it not only connects instantly but also offers crisp audio quality.

Voice Over LTE or VoLTE as it is popularly known has taken the Indian market by storm in recent times. VoLTE converts the voice into data transfers over LTE and converts back into voice before it reaches the receiver. And in case any one of the caller loses the LTE connectivity, the call is converted to normal GSM or CDMA voice call. VoLTE offers a superior call quality as it can transfer more data. The voice call connection too is super fast. Another hidden benefit of VoLTE is that it results in better battery performance as the device doesn’t have to switch back to 2G top make calls and then back to 4G for data.

Ideally, any handset that supports 4G LTE and VoLTE should be able to support the Reliance JIO SIM card. However, there have been instances when the device did not support it even after having 4G enabled. If you are not sure whether your handset supports JIO SIM or not, Reliance has put up an elaborate list of supported devices from almost all brands on their website. It would be wise to check the list if you intend to use a JIO SIM and planning to buy a new handset.

If you have found a device that supports 4G, VoLTE and have got a Reliance JIO SIM as well, you are all set and good to go. All you have to do is head over to settings and look for call settings, you will find VoLTE or HD call options and have to toggle them on.