I do not know if ArchiCad has totally incorporated a EPM remote client application in the program. Would be great. But within the "First Dutch Model server" project
www.fidumo.nl we are using the seperate remote client application. So in our case
allplan --> desktop --> epm client application --> epm remote model server
Would be great is you could lose two steps in the process, but EPM will probably not build it. So it's up to ArchiCad to get it working.