Bharti Airtel's CEO Gopal Vittal said that the telco will move to VoLTE in key markets in the following 18 months.

“… and even as sub-GHz band is best in deploying voice, 1,800 Mhz band is also very good.We are future-proofing our network for VoLTE and looking at deploying equipment switch in key markets,” he said.
 he said.

Bharti Airtel before the end of last year granted a $60 million (402 crore) deal arrangement to Finnish rigging creator Nokia to execute voice-over-LTE (VoLTE) calling innovation. Airtel has been steering the innovation in a couple of regions and after effective testing, it might dispatch in key markets, ET prior detailed.

VoLTE permits a provider to offer both voice and data without interchanging between bands, with voice being simply one more application that rides on a LTE, an innovation that newcomer Reliance Jio has received. Airtel as of now offers approaching the legacy circuit-switch.

Mukesh Ambani-drove Reliance Jio Infocomm is the only provider that is as of now offering Indian VoLTE-based voice services bringing Jio to its more than 72 million clients in India.

Other than the cost consider, VoLTE brings advantages, for example, it may help telcos handle call drops circumstance to a degree. Besides, VoLTE as an innovation offers different favorable circumstances, for example, better cell phone battery life, less ring set time and better voice quality.

Vodafone India and Idea Cellular, the nation's second and third biggest telecoms, could likewise join the VoLTE race soon, having supported their 4G spectrum in the last auctions. Vodafone is as of now trialing VoLTE in select ranges utilizing Nokia's IMS arrangement, while Idea Cellular is in chats with both Ericsson and Nokia.