Hi Robert
Welcome to nthw.co.uk
It is a pain with the idle time disconnection but as long as you have outlook open all the time doing a send and recieve every 2 or 3 mins then you stay connected just fine.
Sometimes I even manage to stay online for more than the 2 hours but it is not often and there is no pattern to it.
I went 6 hours one time without being disconnected.
If you want to discuss this further then give me a shout.