Quote Originally Posted by Lady's Human
The worry with cellphones in hospitals was twofold.

One, the signals from the older, higher power analog phones did cause disruption in sensitive computer circuits. This would cause interference with medical monitors, as most med monitors are specialized computers.

two, hospitals use wireless systems, and there was concern about interference with the wireless systems in use. (completely different frequencies, not a problem)

there you go D and D that should answer your question. i dont know what specific equipment they were worried about though