Future mobile networks will offer a great variety of multimedia services. DiffServ is the promising framework standardized by the IETF to enhance the Internet with the essential quality of service. Unfortunately, transaction-oriented applications?the most popular class of applications?are not sufficiently supported yet. Quick Forwarding (QF) has been proposed to fill this gap between Expedited Forwarding and Assured Forwarding. In this paper,1 we present a scalable QF Per-Domain Behaviour using a set of simple but effective traffic conditioning functions. Our approach enables ISPs to provide end-to-end services suitable for transaction-oriented communications while utilizing their network resources efficiently.