The mobile phone network operators don't want people using phones from planes either. On the ground, the handset can talk to only a few base stations which is normal operation & as the handset looses range of one base station, it is handed over to the next. In the air, the handset can talk & listen to literally hundreds of base stations. The network has no idea where the phone really is & the interference to & from all the base stations seriously reduces the capacity (i.e. revenue producing phone calls) the network can handle.