Videotelephony as a concept began to materialize shortly after the telephone was patented in 1876, and its history is closely connected to that of the telephone. See more

AT&T developed a refined Picturephone throughout the late 1960s, resulting in the "Mod II" (Model No. 2), which served as the basis for AT&T's … See more

This time period saw the research, development and commercial roll-out of what would become powerful video compression and decompression software codecs, … See more

Barely two years after the telephone was first patented in the United States in 1876 by Alexander Graham Bell, an early concept of a … See more

In the United States, AT&T's Bell Labs conducted extensive research and development of videophones, eventually leading to public … See more

Beginning in the late 1960s, several countries worldwide sought to compete with AT&T's advanced development of its Picturephone service in the United States. However such … See more

Significant improvements in video call quality of service for the deaf occurred in the United States in 2003 when Sorenson Media Inc. (formerly Sorenson Vision), a video compression … See more