Integrated services digital network voice data manager

A discussion is presented of the integrated services digital network (ISDN) voice-data manager (IVDM) application being researched by the PC division of the National Cash Register (NCR) Corporation, Dayton, Ohio. This application is geared toward taking full advantage of the basic and supplementary voice services and basic data services (file transfer, screen transfer, etc.). The various implementation level issues of IVDM which runs under the multitasking environment offered by OS/2, are examined.<>