As the global trends show the universal acceptance of VoLTE (Voice over LTE) – for offering voice calls over IMS (IP Multimedia Subsystem) architecture based LTE networks, here in India apart from BSNL, all serious players (Airtel, Reliance Jio, Vodafone/Idea) are launching VoLTE or already launched it. Reliance Jio is completely on VoLTE, while Vodafone is offering it in ten circles, followed by Bharti Airtel in nine circles. Idea Cellular has opened the VoLTE to its employees, which is expected to go official for the users in some circles very soon, but there’s no word on the same.
Reliance Jio is completely on VoLTE, as the telco doesn’t have any legacy voice network on 2G/3G. Others telcos have the Circuit Switched Fall Back mechanism based voice on 2G/3G and data on LTE initially, later they are moving on to VoLTE.
Why is VoLTE gaining momentum in the country? The reason is simple – better spectrum efficacy, refarming of spectrums that is being used on 2G/3G networks, better services like HD voice and video calling are the main reasons.
