How to extend the ring timingFor eg :-Default ring timing to. Custom15sec ring timing to 30secEvery Time the some MMI code the popup msg arrives as Connection error or MMI Code is invalidHow to solve this?

My Bluetooth keepsAutomatically turns off and turns on for past 2 days .But nowMy wifi is keeps turning of with BluetoothIssue :-If Bluetooth offWifi is also off with out even a single touchSuddenly Bluetooth onWifi is also on with BluetoothThis...