To: Pierre who wrote (24438 ) 11/15/2001 6:11:30 PM From: Maurice Winn Read Replies (2) | Respond to of 29987 Pierre, rant here about ATC: Message 16665079 You can go back upstream to find some more comments there. The soft handoff is easy between satellite and terrestrial because they would be at the same frequency. The idea is to reuse the Globalstar spectrum when a handset is in an environment [such as in a building] when it can't connect to a satellite. So, imagine you have your Globalstar phone in a concrete jungle and it can't see a satellite but it can see a terrestrial base station. It will talk on the Globalstar frequency to the terrestrial base station [ATC]. Now, suppose you walk out of the building and hop in your car. The phone will be 'whispering' at the minimum volume needed to maintain connection to the terrestrial base station. As you drive away and head for the wide open spaces, the link to the terrestrial base station will fade and the handset will be cranking up the decibels and soon a satellite will be receiving it loud and clear. Soon it will be louder and clearer than the terrestrial base station which will be receding into the distance. The handset will then be taken over by the satellites and gateway nearest the nearest satellite [or whichever has been designated to handle the location of the phone]. You get in your Gulfstream and head over the north Atlantic to China from LAX to see Hu Jintao and ask how the cdma2000 rollouts and production by Chinese companies is coming along. While you are doing that, you are continuing your Globalstar conversation all the way, uninterrupted. Hey Presto! Total coverage!!! That's a 3 exclamation mark coverage... I suppose that multimode, multiband handsets will be available by the time an ATC [Ancillary Terrestrial Component] network is built so a Globalstar phone will be able to go anywhere, using GSM, cdma2000, VW40, or Globalstar [ATC or LEO], whichever provides the best link or is cheapest. Mqurice