New communication service capabilities of mobile devices have boosted the apparition of ubiquitous multimedia scenarios where users could easily create ad hoc multimedia sessions by friendly providing their requirements and preferences. In order to dynamically create and deploy such ubiquitous multimedia systems, end-users require frameworks which allow them in a spontaneous manner to generate the required multimedia sessions. This work introduces an ontology based framework aimed at the configuration and deployment of multimedia services driven by user preferences. A case study is presented in order to illustrate the use of this framework in the context of extended home networks.