You've got an example in "Tour de Flex" named "detecting user presence", it is place in the menu AIR capabilities > coding technique.
I don't know if it will serve you but when i read your message i remember this demo. Alban Battershall, Jeff a écrit : > > > In the AIR app I’m building, if the user leaves the app running for > without interaction, the network times out and the user gets > ChannelCall.Failed error when they next attempt to interact with the > application. > > > > What’s the best way to listen for a timeout? On the ChannelSet? Or to > keep the network connection alive by periodic requests? > > > > Jeff Battershall