Yes, your fully configured and linked to your phone AONE works if you temporary have no Internet connection available but your phone still needs to be connected to your home network.
If you need more information, please contact Aurora customer support on:
UK: +44 (0) 1707351859
AUS: +61 1300 266 326
Phone lines are open Mon-Fri 9am-5pm.
Or raise a support ticket, clicking on the HELP button.