| 摘要 |
<p>Videophonia in large scale with the use of microphones, video cameras (1) and conventional TV set receivers (3) and an integrating interface (2) able to accomplish calls using TCP-IP (Transmission Control Protocol - Internet Protocol) data communication protocols or another ones with similar function, signalize receiving calls showing subscribers caller address, using the modulator and demodulator equipments (modem) (7) and as sign infrastructure network one or more of the following system: the pay TV hybrid network, constituted by coaxial cables and optical fibers, metallic and optical fibers cables telephony operators plant, metallic and optical fibers cables of allowed telecommunication carriers network, radio frequencies including infrared zone or even electrical energy transmission plant (5), transiting by one or more central stations (6) equipped with router equipments strategically located.</p> |
