Considering DL (et al) make announcements about not engaging in voice calls during flights, I doubt you'll get much support from them. I actually wish mine did NOT work (ATT).
Originally Posted by
RedPanda5
There is where a VPN comes in handy, I have even taken a zoom call (don't worry i only listened and typed questions into the chat) while in the air
This. I join Teams calls often (as a listener only, type out a chat if I need to interact). The presentations and video actually work well on Viasat equipped aircraft.