Reliance Jio on Wednesday launched voice and video calling over Wi-Fi service that will allow customers to switch seamlessly from LTE to Wi-Fi-based calling when they are at home or office.

The company said Jio Wi-Fi calling - which works on the largest ecosystem of handsets - will also allow users to make video calls over Wi-Fi. The service would be available for free.

The announcement comes less than a month after rival Airtel launched a similar service in Delhi-NCR. While Airtel has announced that its Wi-Fi calling feature works only with Wi-Fi powered by Airtel broadband, Jio offers this facility for any Wi-Fi network.

Jio said it has been “testing this service over the past few months to provide a robust experience to every customer at launch.”

Customers can use any Wi-Fi network for Jio Wi-Fi-calling. The voice and video calls will seamlessly switch over between VoLTE and Wi-Fi to provide an enhanced voice/video-calling experience, it added.

“At this juncture, when an average Jio consumer uses over 900 minutes of voice calls every month, and at a growing base of consumers, the launch of Jio Wi-Fi Calling will further enhance every Jio consumer’s voice-calling experience, which is already a benchmark for the industry with India’s-first all VoLTE network,” Reliance Jio director Akash Ambani said.

Jio Wi-Fi Calling will be enabled pan-India between January 7 and 16, the statement said.