FWIW, we have an existing WG in the IETF to look at the aviation mobility case, MEXT. They are in stage 1, understanding what the requirements are. Jari -- to unsubscribe send a message to rrg-request@psg.com with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg