New iPhone 4S won't make calls or texts or connect to 3G?

I bought a brand new iPhone 4S on contract today on the Orange network, and the phone works fine etc, but I can't make calls or anything yet. Why is this and when will I be able to?

Call orange. Not sure why you expect us to have any idea on your service.

Well about your 3G you will go to general cellular cellular data and turn it on from there about the rest your line have issues you need to talk with your provider it might be the sms center number for the sms or something else because you can't do calls as well