This book constitutes the refereed proceedings of the 7th IFIP/IEEE International Conference on Management of Multimedia Netwoks and Services, MMNS 2004, held in San Diego, CA, USA in October 2004. The 16 revised full papers presented were carefully reviewed and selected from 84 papers submitted. The papers are organized in topical sections on multimedia over wireless, adaptive multimedia streaming, novel protocols in wireless systems, scalable multimedia systems, MPLS: bandwidth provisioning and control, distributed systems management, proactive quality of service, multimedia service control and management, and mobility: control and management.