I have been working out at a site with fringe service. We decided to purhase and use some Radios, nice 5 mile range ones too. I still haven't bothered to find the actuall output on them but once in the server room I replied to a call and one of the servers nearest to me rebooted. But after retrying it several times I never got anything else to happen. (Right moment in time)
Also once I had my cell phone next to my car stereo waiting to drive back into signal to make a call. Stereo went nuts when it got reconnected. Now that I can say was damaged as the Left speakers are blown. (Volume was set to 100%, 6 month old loved that one)
Both of these occations were either right on top of or within inches of to cause the interference, and have never been done again despite trying. Still I am incharge of the server room, and I respect the possibility, and keep a few feet between me and them when useing an radio.