I used the airtel network from 2006 and I was talk to my fiance constantly 4 to 5 hours bud I didn’t face any network problem with it. and if I had need any query about the new scheme then the customer care representative alway support to good. their is no hidden charges apply by airtel. and its billing be on time if you are unavailable to go to outlet so there are many option to deposit your bill amount. so its good.