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					Originally Posted by  nomadking
					 
				 
				The test isn't of people's phones, but whether the tower will transmit the signal to all phones in it's area. Only a few phones in each area need to be on or enabled to test it. As long as there is no selection process, then the test will still be valid. 
			
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 I think you are missing the point of the system. 
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				Systems in the future could change and technology upgraded. Will the system have to be retested then?
			
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 Potentially. Countries that utilise the technology already (e.g. the United States) have tested it on multiple occasions, in addition to live use cases.