Who called from 4012175470

They are based out of Rhode Island selling VIOP phone systems.  Do not answer almost all phone systems these days are VIOP

Indian guy named "Mark" asked for someone in the IT department. Said he was calling about business documents on behalf of Mimecast... yeah right dude. He hung up after I put him on hold.

Dead giveaway when two calls come in at the same time.  Leave us alone!

Called asking for someone who hasn't been here in like 7 years.
Clearly selling something.

Two calls coming in from different parts of the USA within five minutes of each other. I'm in Sweden - I haven't gotten calls from the USA for all my professional life and now two different numbers within five minutes...? This is clearly a hoax-number.