Abstract: A communication system is provided which permits the transfer of broadband multimedia data through a network. The communication system includes network terminals, a transmission backbone, and a call set-up server. The call set-up server controls call handling and connection handling. The call set-up server includes an access part, a user part, and a central part used for call handling. The central part sets up a call between parties in the system and operates independently from the access part and the user part, enabling a new access part to be added without affecting the existing central part.

Abstract: A communication system is provided for transferring broadband multimedia data through a network. The system includes network terminals, a transmission backbone, and a call set-up server. The call set-up server controls call handling and connection handling or channel allocation. Channel allocation is handled separately from call control, enabling upgrading of connection handling hardware and software without affecting the rest of the system.

Abstract: A communication system is provided which permits the transfer of broadband multimedia data through a network. The system includes network terminals, a transmission backbone, and a call set-up server. The call set-up server controls call handling and connection handling. The call set-up server includes an access part, a user part, and a central part. The central part sets up a call between parties in the system and operates independently from the access part and the user part. The call set-up server also includes a service pointer which permits supplementary services to be added, removed or modified and permits access parts to be added or modified, without affecting already existing services and access parts.