Hey Chels1,
Welcome to Crowd Support 
This is an interesting one as there is not an extensive list of handset that have been tested on this NBN connection sorry 
I would recommend contacting my colleagues in the NBN Assurance Team on 1800834273 - IVR option 3 (24/7) and see if they can assist with having this connected?
Please do update the thread once you have received an update on getting this handset connected? -Dingo