that’s all well and good for you FTDK with the expensive fancy equipment. But my first thought as would have been most pilots (who can't afford the latest in communication and tracking equipment) was the single IFR RPT pilot to answer his mobile would have had to, thumble around in his pocket for a while to get it out and then probably take off his headset to talk on the thing, cutting off his listen watch to traffic and ATC. That would be foolish and unprofessional