India’s largest telecom company Bharti Airtel on Thursday announced that it will offer internet speeds of up to 100 Mbps, up from its previous highest of 16 Mbps. The company’s “V-fiber superfast broadband” service uses Vectorization technology, which is popular in Europe.

All of its current users will be allowed to upgrade to the new speeds by buying a new modem device. They can get unlimited data on the new speeds for the next three months without paying extra, Ajai Puri, director for operations at Bharti Airtel told Financial Express.

The company said it has launched the V-fiber service in Chennai and will soon move on to the 86 other Indian cities where it offers fixed broadband internet. It added that the facility will allow all users to make unlimited free voice calls to any network across the country. Its free voice calling offer was previously limited to specific plans, NDTV reported.

The move comes at a time when other telecom majors Vodafone and the newly launched Reliance Jio are also stepping up their internet offerings. With the market for WiFi internet growing, both the companies are looking to tap into home broadband users. Reliance Jio, which already promised cheaper than ever before data rates when it launched, is also looking at a fiber-to-home network in some Indian cities.