Hi Joseph, thanks for this extract for qos management with AOS 6.4. Plus adding the new AP205 on certain infrastructures some sites here want to define today some bandwitdhs for their voice flows, a possibility which cannot be not done with previous versions, dixit some administrators (AOS 5.0 or more). I am in doubt with this and don't really understand their missing if they are able to activate voip CAC through the ACM classification as it is specified here. to be doublechecked by my own. Last question, as I face some difficulties to boot from scratch with AP105 with the 6.4.2.2 (stay always on "writing 4"), where can I check into 6.4 versions the support of this AP model? Thanks again Olivier Mazenod - ALU-E France