The same result so blocked these buggers

Called twice in 2 days, answered and no one spoke. Must be a scammers automatic phone dialling system to check that the number answers so their telemarketers can call back at a similar time.

I answered good morning, our company name and they hung up immediately. They properly realised they rang a company.......

Scammers my guess testing phone numbers.

same issue - no response or background noise for 15 seconds. Then a short high pitched beep