Apple has been running its own LTE tests before offering the iPhone 5 to carriers, according to Telecoms.com. The site says it first heard about the testing in October, but this week heard from a Swisscom spokesperson, who stated that "Apple only enables 4G access after testing their device on an operatorÃs live network." The situation is the reverse of what normally happens in the cellphone industry, where carriers vet phones to prevent substandard hardware from impairing their networks or tarnishing their reputations.