From the way he sounded, he's not young. Mid 40s to 50s. I'd say, reasonably well-educated, middle-class.
9 seconds sound clip from the Longstreet (Ep. 6 Spell Legacy Like Death) TV Series.
You can hear this line at 00:05:06 in the DVD version of the movie.
Quote context
[...]
- All right, be more comfortable here in the dining room.
- You know my assistant, Nikki Bell, Captain Dimirjian.
- I'll show you the way, Captain.
- Uh, Captain, this is Li Tsung.
- Oh, Mike... Did you get anything at all from the phone conversation?
- Yes, sounded like a man who'd been pushed. Now, he wants to shove.
- And you think he's a former client?
- I think it's worth checking out, Duke.
- He called me. He said something else. Something about his name not being important to me.
[...]