With its 6 months of free services, nobody thought that Jio will be able to retain 72 million of its users after the joy for 6 months is over, but they have done it, not only by its promising and value for money deals but by improving its network range also, its been really impressive. There was a time when I could not even deliver a whatsapp message in my home at night time, but now, it is giving a good 400-500kbps throughtout the day and night. Because of Jio, other telecom giants have gone too cheaper too. It was not a step, it was a revolution by Mr. Ambani. One thing that is not digested by me is its usage in 4G and VoLTE only. Voice calls should work on all phones without using Jio4GVoice.