Screen sharing between iPhone and iPad connection no internet available

Etienne2019

Dear all for an archaeological mission in a very remote part of the world I will have to send the screen of my iPhone to an iPad. I will be able to put both the iPhone and the iPad on the same local WiFi network but without any internet connection. As far as I can see to create the ID in TeamViewer quicksupport on the iPhone internet is needed? Any possibility to send the screen without  any internet ? Yours 

Etienne