I have heard that Vonage can work with name and number if you use a different VoIP box (whatever the thing that hooks up to the cable modem is called). The one they provide from Cisco apparently does not support name and number. If you got a newer model, you would get name and number caller ID.,

I don't have Vonage, I don't know anyone that has it either. I just remeber that from some forum (possibly this one).