My department at my employer uses plain 2500 style telephone sets
> under a Centrex system. I kind of assumed they were still common
> place, but I understand now that they're kind of unusual? I heard
> caller-ID is very common on business phones, is that true?
Unfortunately everyone wants one button access to features and such and displays with caller ID, length of call, etc. so you're seeing less and less of the 2500-style phones on office desks these days.
One of the things I appreciated about the Executone IDS systems I used to maintain is that the "wave" desk phones had 2500-style keypads on them instead of the keypads found on the new business system phones (buttons wrong size, a 'mushy' feel to them, etc.). Nothing beats those old tried and true keypads.
J.P. Wing