visual telephony

visual telephony

[′vizh·ə·wəl tə′lef·ə·nē]
(communications)
The transmission of picture information (television) over telephone lines.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Under the terms of the agreement between the three companies, the new IP CONVERGENCE Server SS9100 from Oki (SS9100), OKINET, and the videoconferencing system 'Visual Nexus' from TCB will be merged to create the 'visual telephony solution'.
According to the companies, the new Visual Telephony Solution will use the Oki SIP (Session Initiation Protocol) based IP telephony server SS9100, the SIP/H.323-supported Visual Nexus meeting system, and the Visual Nexus SIP option, to enable IP voice (telephone), videoconferencing, and web meetings to be interconnected on the same IP network environment.
The UniTV platform supports Integra5's three product suites, UniTV Visual Telephony, UniTV Visual Messaging and UniComposer(TM), and has been commercially deployed by service providers since mid 2004.
Recognizing the need for providing ubiquitous video services using the Integrated Services Digital Network (ISDN) [3], CCITT (International Telegraph and Telephone Consultative Committee) Study Group XV established a Specialist Group on Coding for Visual Telephony in 1984 with the objective of recommending a video coding standard for transmission at m x 384 kbit/s (m = 1,2,..., 5).
The CCITT has adopted the Common Intermediate Format (CIF) and Quarter-CIF (QCIF) as the video formats for visual telephony. The parameters for these formats are listed in Table 1.
It appears that all of these ingredients are present today and visual telephony using ISDN will soon become a reality.