Multifunction workstation integrated voice/data/graphics for the ISDN environment

The authors focus on the development of a multifunction workstation for the ISDN environment, integrating voice, data, and graphics information. The configuration and services of the workstation are introduced. The multimedia protocol and multimedia synchronization are discussed, and the implementation of the ISDN communication control unit (CCU) board and the CCU interface to the host computer are described. In addition, a brief discussion is included on how to counteract weakness of the multitasking operation system in read-time support. The architecture and implementation of the basic system software and the relationship between parallel processes are described. Some applications of multifunction workstations are introduced.<>