Reliance Jio’s 4G internet service is due to launch on commercially by the end of 2016, but the company has rolled out the service partially. Customers who buy the Reliance Lyf brand handset can get an early preview of the Reliance Jio 4G experience.

Reliance Jio is an awaited launch in India’s 4G services because the company holds a pan-India license in the 4G spectrum, and will be offering only 4G LTE connectivity. Reliance’s total investment is nearly Rs 34,000 crores in this venture, and no doubt there’s a lot riding for the company with Jio.

For now, the Jio 4G service is available on a limited preview only. Users can buy a Reliance Lyf brand smartphone, but before that you need to register on Reliance Jio website (jio.com), and you’ll get a code delivered to your email for Jio service. The code is what you’ll need to go the SIM along with a Lyf smartphone. Reliance Digital Stores and Digital Xpress mini stores are where you’ll get these Lyf branded smartphones.

The code is non-transferrable, and you will need to carry your own ID and address proof to get the same. Do note the codes come with an expiry date, and so you need to buy the SIM and phone before validity expires.

Reliance Lyf has phones starting at Rs 2,999 which are 4G-enabled.

Reliance Lyf, which is the smartphone brand from the company, recently announced price-cuts on its cheapest smartphones, and is now offering 4G VoLTE ready smartphones at Rs 2,999. While specs might not be the highlight of these phones, the interesting bit is that you can get the Reliance Jio SIM connection free for 3 months.

The company has also laid more than 2.5 lakh kilometres of fibre-optic cables, covering 18,000 cities and over one lakh villages. The service claims to have an initial end-to-end capacity to serve in excess of 100 million wireless broadband and 20 million Fibre-to-Home customers.