Videophone

A 1969 AT&T Picturephone, the result of decades long R&D at a cost of over US$500M

Newer units, such as this Avaya Nortel 1535 IP model, have migrated from slow POTS lines to higher speed ISDN and broadband VoIP services (2008).

Artist's conception: 21st century videotelephony imagined in the early 20th century (1910).

Ives, Herbert E.. Picture Transmission and Television in: Bell Labs Quarterly, April 1932, Vol. 11, pp. 118–142.

Jaur, Francis. “Usage Domestiques du Visiophone”, Technologies de l’Information et Société, 2, 1990, pp. 89–102. (French)

Schunack, Von Johannes; Maly, Rolf. Die Fernseh-Sprechtechnik in: Fernseh A.G.: 10 Jahre, Berlin: Hausmitteilungen Aus Forshunsg Und Betrieb Der Fernseh Aktiengellschaft, July 1939, pp. 138–143. (PDF, German)

Schulte, Olaf A. "The Next Best Thing To Being There" – Ein Überblick Zu 25 Jahren Videokonferenzforschung (An Overview of 25 years of videoconferencing research) in: Medien & Kommunikations-wissenschaft, Baden-Baden: Hans-Bredow-Institut, April 2002, pp. 551–570 (PDF, German).

单词	Videocall
释义	Videocall 原声例句 5C I tried to watch some videos, but they kept buffering so I made a videocall to my girlfriend instead, but the call kept breaking up. 我尝试观看一些视频，但它们一直在缓冲，所以我给女朋友打了视频电话，但通话一直中断。英语百科 Videophone Ives, Herbert E.. Picture Transmission and Television in: Bell Labs Quarterly, April 1932, Vol. 11, pp. 118–142. Jaur, Francis. “Usage Domestiques du Visiophone”, Technologies de l’Information et Société, 2, 1990, pp. 89–102. (French) Schunack, Von Johannes; Maly, Rolf. Die Fernseh-Sprechtechnik in: Fernseh A.G.: 10 Jahre, Berlin: Hausmitteilungen Aus Forshunsg Und Betrieb Der Fernseh Aktiengellschaft, July 1939, pp. 138–143. (PDF, German) Schulte, Olaf A. "The Next Best Thing To Being There" – Ein Überblick Zu 25 Jahren Videokonferenzforschung (An Overview of 25 years of videoconferencing research) in: Medien & Kommunikations-wissenschaft, Baden-Baden: Hans-Bredow-Institut, April 2002, pp. 551–570 (PDF, German).
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Videocall

Videophone