If I had one of these at each end:
https://docs.google.com/presentation/d/1qp24xwgyPRHwmbveB68dd0KOsaf__Jn90FA_GPQk6Kw/edit#slide=id.g1bcf123b08_0_6
(AREDN Reference - 1.1 - Part 15 access)
With cellular turned off, would I be able to communicate iPhone to iPhone using FaceTime or Skype apps at each end? That is, using AREDN mesh to connect.
Would I be able to get up to 15 km of range, line of sight?
Thanks.
You could use Bria or Linphone or other VOIP apps that are peer to peer.
As far as distance, it depends on the devices at each end, antennas, elevation, clearance (line of sight), etc.
However, I can say 15km links are common.
TeamViewer works great with voice, video, file sharing, remote computer access! No server necessary and free for personal use.
https://www.teamviewer.com/en/?pid=google.tv_teamviewer_exact.s.us&gclid=Cj0KCQjwiLDMBRDFARIsACNmiX-nx1J5KJz9P5iYs-tV5khNR9_X0Po1N4_i0OWxWpIovjaZEx0JOmQaAkjaEALw_wcB