805-419-9579

This number called my business line twice yesterday and once today. They don't let it ring more than 3 or 4 rings, so I only managed to answer one of them so far. I only heard dead air, then a harsh and short electronic buzz, and the line disconnected. 805 is a California area code, and the name on the call display says "ViaBPO". Searching online for that name gave nothing, so it's probably a fly-by-night scam operation.

That number has been calling us twice a day for days now.  Do not answer.

This is the number given for the "help desk" in an e-mail scam.  noreply @ factureone . ro   There's an accompanying file, an invoice number, a request for $349.99 in bitcoins, etc...  There's a reference to Microsoft Office 365 but I'm sure that's all part of their scam.