I don't use the sims but I can't see how they would be able to, as the wireless EA needs to talk to the mobile carrier. If you "simulate" that, all you could possibley be doing is skipping that, as I can't see how the interaction between the BES, RIM and the BB using the mobile network could realistically be simulated. Someone who uses the sims might chime in and say I am wrong but I can't see any value in simulating something which 100% needs a the mobile network to be there.
Is there maybe something you are trying to achieve/answer which we could assist with more directly, as i can't see what you gain from simulating the OTA EA.
I was a BES and Exchange admin once.
Then my world turned Blue.