Spam. Person called for some open ticket which was true but to solve the ticket issue he wanted to identify my indentity. As it was the unknown number I had to hang up. I called the company directly to see whether they called me and my old ticket was still not resolved. They said we did not call you and glad that I did not give any of my identity

Legitimate call from our employer's benefits department.

Legitimate call from company benefits center* on 09/27/2016, responding to a request I made yesterday. Didn't get to the phone in time, but they left voice mail. I called back on the toll-free number in the voice mail and got the information I needed. Happy ending. :-) Listing call type as "unknown" because none of the other selections matches.

*Actually, from the company to whom my company has outsourced its benefits center, but still legit.

It's a benefits consultant, but not very professional.  Just a call center boiler room.  They may do all sorts of crap calling besides.

Legit benefits department from my company called to reply my questions about my benefits.