[TCML] Tesla Coil w/Cell Phone Trigger - Suggestions Needed!

[jimlux]

S&JY wrote:
> Gabriel,
> 
> Without knowing more details, I would recommend you don't use a cell phone
> to trigger anything potentially dangerous.  There is no guarantee that the
> phone won't ring due to a wrong number, etc., when you are not expecting it.
> This could lead to bad results and injury.
> 
> Best to have a very positive fail-safe means of turning on and off Tesla
> Coils and other high voltage devices.
> 
> --Steve Y.
> 

I would assume that there's other fail-safe mechanisms and guarding 
going on (like one of those nifty "light curtains" they use for machine 
tools) or, the coil is operating behind a barrier and grounded screen.