"Kumamoto-san, this is Mike Bishop, from Fort Worth," I said, using a name I had read off a Consumer Electronics Show electronic message board only moments earlier. "I usually talk to Fred Walker, but he’s not in. I’m at CES in Vegas." I was counting on the actual background noise to lend credence to the claim. "We’re doing some testing for a demonstration. Is there a way to change the ESN from the phone’s keypad?"