With the fast deployment of the satellite, the integration of the Internet and the satellite will be the important tendency toward providing broadband multimedia transmission service. In the future, with the wide covering range, high bandwidth as well as the broadcasting capability, the satellite communication can easily achieve the ubiquitous transmission for meeting the requirement of the future multimedia applications. Besides, the QOS (quality of service) support for the multimedia is also important. This paper proposes a Spoofing RSVP (Resource Reservation Protocol) based on an integrated platform to guarantee the QOS in multimedia transmission. A CAC (call admission control) is proposed to support this reservation scheme. We compare the Spoofing RSVP with the traditional RSVP through simulation experiments. The results show that the Spoofing RSVP is suitable for the integrated network. In addition; the CAC message could be feedback to the integrated platform to optimize the network resource utilization.