One of my radio station sites has a Nortel MICS. Almost 15 years ago, lightning struck near the building...blew most of the phones and a couple of station ports. CO lines and power supply were fine. Most of the computers in the building lost their NICs and the core ethernet switch was toast. No power supplies died, protected by layers of surge suppression. We figure the EMP from the lightning was induced into the building's twisted-pair wiring. Stations that didn't die were very short runs to the MICS.

When the site added cable internet and phone later, the cable co didn't bond the coax to the master ground bar, even though it was three feet away. That led to some nastiness a few years later.