I've been sitting on the ground on a turn around in BNE with the cockpit window open (A320 family).
Phone rings, immediately "GPS PRIMARY LOST" appeared on the ND and the SID and airport slewed off the side of the screen.
It was a short call, them when I hung up it the message disappeared and everything slewed back to normal.
Call it circumstantial or what you will but no phone is staying on cellphone mode in my cockpit of anything with FBW.
But as we know this easing of the ban only relates to devices with the cellular 3G communications disabled so that they could work on wifi.
Last edited by compressor stall; 1st Nov 2013 at 23:11.