Open figure viewer
Briefly reviews the concept of information technology and its relationship to various forms of telecommunication services. Discusses the role of the telephone, integrated services digital network (ISDN),freephone numbers, facsimile (FAX), electronic mail, voice messaging,voice mail, video‐conferencing, videophones, and audio‐conferencing.
This content is only available via PDF.
© MCB UP Limited
1992
You do not currently have access to this content.
