Mr Holloway said NTSB investigators had not yet examined the cockpit voice recorder and flight data recorder, which were being sent to the board's lab in Washington for analysis.
For all intents and purposes, there will be no phones in the future - only portable data devices used for all kinds of communication, voice being an equal partner with the web.
The system is frequency flexible, connects hundreds of users to a single base station, and delivers superior range and link performance invoice, video and data transmission.