Its being More than 3 Year With docomo at Mumbai circle haven’t face any issue.Network is good, data is Cheap and good . Since they dont have 3g in Mumbai the speed of 2G is uptomark.Recharge is quick and gets lots of offers.One can donwload get at there smartphone, they will also get few mintues by just viewing the advertisement .CDMA AND GSM both network is good, they are having latest network tower in mumbai.