VoWiFi and VoLTE Differences Explained To understand why Voice over LTE or VoLTE first came into the picture, it is imperative to understand the need for it. Previously, on the 3G and 2G network, the calls used to be made on a circuit-switched (CS) network which was basically the 2G network responsible for carrying calls. However, the LTE network is a packet switching network, and as you know, packets, simply put, are nothing but data which is carried over the network. Now, with this, we can understand that VoLTE is a technology which carries calls over the packet switching, or data carrying network. Now instead of a solution which falls back to the old (circuit switching) network every time a call is made, the VoLTE network ensures that your internet is on while you are making a call. Similarly, on these lines, the networks are now using the same technology to transmit calls over the Wi-Fi network. Because of the stability of the Wi-Fi network and the non-dependency of the networks on cellular connectivity, the VoWiFi technology allows the subscribers to make calls even when there is no cellular connectivity. Only a Wi-Fi connection is required to make calls over VoWiFi. Airtel and Jio Leading in VoWiFi Rollout It is worth noting that both Bharti Airtel and Reliance Jio are slowly rolling out VoWiFi support for their subscribers. Currently, the rollout is happening sparingly in some places, and on a very limited number of devices. Mostly, devices like iPhones, few Samsung phones like J7, Galaxy S10 series and more have received the ability to make calls over VoWiFi network from Bharti Airtel. Also, in regions like Delhi NCR, the VoWiFi is live now from Airtel. Although, in other areas as well, Bharti Airtel is rolling out VoWiFi slowly. Initially, the subscribers who were able to see the VoWiFi logo were able to make calls over the Airtel Wi-Fi network only, but now the consumers are able to make calls through the other Wi-Fi networks as well. Similarly, Reliance Jio is also rolling out its VoWiFi service in many areas across India with limited devices on support right now.
