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I have the following code and I have read that for outgoing calls ringing state is active when phon… Read more Ringing State Out Going Calls

I want modify below screen according to my option. I don't know how to access this screen. a… Read more How To Modify Incoming And Outgoing Call Screen View In Android

in which cases this method returns a null reference? Can only depend on the sim card? Doesn't e… Read more Android: TelephonyManager.getSimSerialNumber() Returns Null

I want to perform some operation (Pause game) in my application when a call came. But reading the p… Read more Trouble With Reading Phone State