Getting "call dropped" in between of my calls and the phone gets disconnected.afterwards it shows "searching for network".nokia care center at Andheri west kept it for 5days and told me to check with my network service provider.I visited reliance center and checked my sim card on another set where it was perfectly fine .so it was clear that the problem is with instrument.again it was sent to so called more advanced center of nokia at lower parel, where it was kept for 4days and returned without solving the problem. read full review »