I could tell immediately from the background noise, he was calling from a call center.  He asked for me by name.  I said it was me.  He indicated his record said the factory warranty on my vehicle had expired.  (He mentioned the make model, and year of my vehicle.)  I asked if he was trying to sell me something.  He repeated my vehicle information and said the factory warranty had expired.  I asked again if he was trying to sell me something.  He said, "Pardon?"  I spoke slowly and asked, "Are.you.trying.to.sell.me.something?"  He said he was trying to provide information on how I could renew the warranty on my vehicle.  I said I wasn't interested.  There was a pause, and he disconnected the call.

Unsure of the company name, but the caller ID said "Chicago, IL"