Just a company with a separate colleague now uses PHLIP's Solution, and I have a phone call and chat it a little.
The original Phlip's mobile phone has a Power Management chip that can be controlled in RF these stuff. In fact, when you really find the network, power consumption and us are almost.
It is not difficult to turn off the RF, it is difficult to turn it immediately, control it with hardware, is indeed very strong.
Unfortunately, PHLIP's mobile phone bug is a lot, although it is a bit enviable, but the software quality is a bit B4.