The faraday cage in a microwave is good for its purpose, but not good enough at blocking cell phone bands. They would need something slightly more expensive, anywhere from $1000 to $50k depending on how fancy they wanted to be. Of course Google should have no problem affording any of that, but these details do matter.

I suspect that the problem must be more complex than a bug in just the phone or the OS; for one thing, the problem is intermittent and doesn’t affect every phone. Still, the lack of action from the FCC is disturbing.