Would my SIM card work on a feature phone?

Besides my 9700, I don't have a back up BB device; however, I do have an old feature phone. When I go jogging, I have not been bring my phone with me because the it will flop around in my pocket but my old feature is a lot smaller and lighter, so it wouldn't mind it as much. While I'm not expecting to have the BB feature on my old phone, will I be able to make phone calls with it?

EDIT: I should add that my old feature phone is with my parents whom are no longer use it, so it's not something I can currently test .

As long as the phone has a slot for the sim card, and is with the same carrier, then Yes it would work. I swap between my 9810 and samsung phone constantly.

As long as the phone has a slot for the SIM card, and is with the same carrier, or is an unlocked GSM device with the proper bands, then Yes it would work.

Data probably won't work, but it doesn't sound like you need that as you're going to use it when exercising.

Joe