I am use airtel for last 3 months.Before I use relience operator as much of time when I am out side of my home I have network problem.When some one call me or I call some one pulse are rating but I dont have any sound.But after this operator I am to satified because I am travel long distance of my home and I have no tour problem and I have also sound in ph battery is down or indicate 1 bar line.But one think I mention the operator are so expensive then other operator, call charge also more but the tower also availabale at every where.And I recently I use tyhem 4g network its to high speed and quality also good.Customer care service also available that have no problem.