The following is as true as I remember it...the gist of it is correct.
(ring, ring, ring)
Me: Hello, Snowed In Industries.
Absolutely Brilliant Salesperson: Hi, this is Absolutely Brilliant Salesperson with [some company]. We're just calling to update our records, so we need to confirm your copier's model number.
Me: I'm sorry, who did you say you were with?
ABS: I'm with [some company].
Me (getting suspicious): And what do your records say about us?
ABS: We don't show any record for your office. That's why we need to confirm your copier model.
Me: Have you done any work with us before?
ABS: First time I've ever called.
Me: Then why do you need our copier's model number?
ABS: We need to update our records.
Me (speaking slowly): Why do you need our copier model for your records?
ABS: (mumble mumble mumble)