This is from Karen Leuther at Realmed...

It would be helpful in the near future that I.E. updates 
the TEREADYWHEN documentation section with good 
explainations and examples.  We are all really struggling 
to understand the new commands.  Even after you sent me 
this email, it still did not explain all the types or how 
to have a timeout and a settletime in the same statement 
(which I could not figure out).