Who called from 2765424901

This number has called me 3 times in the last 2 days but has left no  message.

Wanted to talk to the IT department or the office manager. Wouldn't leave a message.

So far this number called three times in a row.  No one says anything.  After about 10 seconds the call disconnects.

A very soft spoken foreign man calls from this number asking to speak to Rodney ?? in the IT department. We do not have anyone by that name here.