...so the cats can make long distance calls with the adopted cats?

No, I kid :P
But I do have an old mobile lying around. Only problem is: everything about it works, except that the part where you connect the plug of the energy thingy (yes my technical lingo is excellent) is completely busted, so it's not actually chargeable.
Do they just need it for old parts, because if so I won't mind sending it in, or do they actually need working cells?