LOL, its surprising how often that works (partially or at least for a while).
If you are able to send, but only receive as voice there is either an issue with the caller display (as the phone needs to recognise the SMS platform numbet to pick up the SMS) or the recive number.
If your caller display is actually working:
I would try the receive number again, enter it fully, then try with last digit removed etc (as you tried before, but this time don't touch the send number).
If that doesn't solve, it try turning it off an on again (you never know!).
What may have happened is the reset has set the numbers back to factory settings, and removed the checks you completed before.
The caller display issue can be a bit of a pain to sort, the phones think it is working, you think its working, but the exchange thinks its not so send you voicemails instead of sms as text. It does tend to be becuse the sms bouces back saying ti hasnt been received and the system assumes its because the caller idplay isnt working, when it can still just be a fautl with the phne or the receive number.