Foreign voice, reading from a script, saying that our server had gone from being private to now being public and wanting us to revert to private. Our response was we would deal only with our internet provider, caller then hung up.
Clearly a right proper dodgy caller, to be avoided at all costs.

suspect scammer - hangs up when answered by phone answer machine which is on a fixed line. Multiple calls.

Scammers? The tone is busy when u call back

scam