well consider yourself very very lucky!
but for anyone else, unless you want to lose your contacts and access to other important stuff on your phone, don't play with fire. just accept the fact that you will not get SIM telephony service on the phone and DO NOT try to restore.
I just spent the entire day with Apple support (again). At one point we were able to get a clean install of ios9, but when we tried to the the restore the activation problem started again. Then the rep logged off.
Spoke to two more reps. One just basically told me sorry your phone is 3 years old what do you expect? LOL
Told me that there is a manufacturing defect that the new ios9 exposed... but of course since the warranty is done 2 years ago I have to pay to get it fixed. LOL
Wait it gets better... I asked him can you at least help me get it to the clean install like the other guy did. Couldn't do it and couldnt forward me to anyone else because he was in the "top of the support chain".
So now if I want my contacts I need to go purchase some 3rd party software to try to suck out the data from my icloud back up.
isn't that just dandy? i'll probably spend the next few days trying to do that.
thanks Apple, wonderful QA, tech support and all that.