It didn't appear in the online manual. https://www.consumercellular.com/Assets/documents/Manuals/Doro%207050%20Manual.pdf
After searching the internet using https://www.google.com, I saw the following suggestion on the web site below.
To disable airplane mode, from the home screen, please press the up arrow (on the navigation ring). There, scroll right to {Airplane Mode), then select OK to toggle it off.
Answers & Comments
It didn't appear in the online manual.
https://www.consumercellular.com/Assets/documents/Manuals/Doro%207050%20Manual.pdf
After searching the internet using https://www.google.com, I saw the following suggestion on the web site below.
To disable airplane mode, from the home screen, please press the up arrow (on the navigation ring). There, scroll right to {Airplane Mode), then select OK to toggle it off.
https://www.facebook.com/consumercellular/posts/hi-my-mom-is-visiting-she-has-a-doro-7050-and-someone-on-the-plane-helped-get-th/10155657890377015/
Please comment or acknowledge if this works for you or not.