A simulation study of a generic broadband integrated network is introduced. The network provides a wide range of services to multiple classes of users with different quality and transmission rate requirements. In order to achieve the performance objectives, a variety of service protocols are used. These include serving all users on a blocked calls cleared basis, modifying the transmission rate according to the available speed, introducing queuing facilities to wideband messages as well as combination of them. Using a computer simulation model, numerical results for the network performance under such protocols are presented and discussed.