I rcvd a call at work on my direct extention leaving me a message to call them back asap. He asked for me by my formal name which made me google the number he left. He left his first and last name but did not reference a company and/or what the call is regarding. Googled the number he left and it is a collection agency.
Just adding to the above comment. Did further research and found out that the message was from a collection agency that collects for Mission Hospital in Mission Viejo, CA
Caller stated I had a bill from America Tel Phone Company from 2005 and wanted my credit card to pay it. Never had any dealings with that company and would never give info like this to unknown caller.