The government does have the ability to activate the mic in your phone even when it is off (as long as the battery is in). In regards to an employer be able to do this, I'm not sure. As far as the other questions in this thread, I would error on the side of caution and say that the company can do just about anyhting they want with their hardware. That doesn't mean that they are doing all of those things, only that they can and will if they feel that it is necessary.
Turn down the phone and use your own. If you are a seasoned, experienced professional a company 'should' respect that.
Partially true, however, if you then put "your" device on their BES, you are in the same boat. The phone doesn't really make the difference. It is the Enterprise (sp) Service that controls how the berry is used, and what the comapany has control/access to.
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