et Télégraphique (CCITT), chrominance, 84, 85, 277 Commission Internationale de l'Eclairage, 78 Cingular, 159, 160, 327, 330 Commission Internationale de l'Eclairage circuit, 407 (CIE), 407 circuit switching, 224, 407 Common Channel Signaling System 7 (SS7), Cisco, 125, 181, 232, 453 Cisco Systems, 125, 232 Common Intermediate Format (CIF), 114 CISSP, i, iv, 313, 407 Communications Act of 1934, 74 Citibank FCC, 190 early adopter of videoconferencing, 8 companding, 106 City Colleges of Chicago, 32 Compaq, 232 Class D addressing competitive access providers (CAPs), 193 in IP multicasting, 184 component video, 96, 277, 487 Clean Air Act, 58 YUV, 277 Video Communication: the Whole Picture composite video, 84 CSU/DSU YIQ encoding, 277 unipolar nonreturn to zero signaling, 195 compressed digital broadcast, 292 custom-engineered videoconferencing Compression, 97 facilities, 269 compression (hardware VS. software), 306 D4 framing, 94 Compression Labs, 408 DARPA, 397 Cameo, 403 early videoconferencing project, 7 Compressed Digital Video, 406 data conferencing Differential Transform Coding (DXC) Microsoft, 141 CLI's early compression technique, 244 feature comparison checklist, 305 early videoconferencing system, 8 data service units (DSU), 420 VTS-1.5, 243 data-conferencing, 290 Compression Labs, Incorporated (CLI), 8 datagrams, 170 Computer aided design DAVIC, 149,216 conferencing, 26 de facto standards, 335 connection-oriented, 224 de jure standards, 335 Conrail Defense Advanced Research Projects Agency use of videoconferencing, 33 early videoconferencing project, 7 Consortium for Audiographics delay synchronization Teleconferencing Standards (CATS), 140 as performed by inverse multiplexers, 208 constant bit rate (CBR) dense mode PIM, 186 needed for videoconferencing, 224 departmental computing, 246 Consultatif International des depth of field, 27, 256 Radiocommunications (CCIR), 111 DES, 218, 416, 423 continuous presence, 127, 261 desktop videoconferencing, 292 continuous surveillance desktop-to-room system videoconfer