 Satellites continuous, 4/11-12 operation and loss, 15/5-6 Communications, deterministic, 4/7-9 parameters, 15/7-8 and information theory, 4/5 discrete with memory, 4/9-11 Coaxial submarine cables, 15/8-9 using the ionosphere, 9/6-7, 9/10-11 discrete memoryless, 4/6-9 Cocktail party effect, sound, 8/14 Companding, error bursts in, 4/10 COCOMO (Constructive Cost Model), broadcast quality sound, 19/21 FDM transmission, 20/3 software costing, 25/18-19 FDM, 20/17-18 impulsive noise in, 4/10 Code auditing, software, 25/14 PCM, 4/12, 19/16-17 ISDN types, 44/7 Code Division Multiple Access see Competition, telecommunications lossless, 4/7-9 industry, 11/6, 11/12-13 lossless, deterministic, noiseless, CODEC coder-decoder, 4/12, 19/11 Complex surface wave attenuation symmetric classes, 4/7-9 Codes/coding, factor, 6/23 noiseless, 4/7-9 2-D parity codes, 14/5-6 Complexity analysis, software, 25/14 symmetric, 4/7-9 AMI, 28/10 Compression see Companding; Characterisation, unlinearity, FDM, 20/11 BCH, 14/9 Data compression Characteristic waves, in ionosphere, 9/5 block coding, 14/4-6 Computer Supported Telephony Charging, telephone networks, 29/12-15 broadcast companding schemes, 19/21 Applications, 11/16, 37/5 Chi-square, burst error correcting, 14/9 Computers see PCs distribution, 1/11 cellphone speech, 47/11-12 Concatenated codes, 14/6 significance test, 1/10-11 channel, 28/3 Conditional probability, 4/3, 4/5 Chill programming language, 25/13 CMI, 28/10 Conductivity, ground, 6/25 Chromatic dispersion, optical cables, 53/7 convolution codes, 14/9-11 Cones, eye, 7/10 CHS (Charging Subsystem), AXE cyclic codes, 14/6-9, 46/11 Conference television, 51/18 system, 32/16 DATV, 57/9 Configuration management, 16/5 Churn, cable TV, 57/18 decoding schemes, 4/9 software, 25/17-18 CI (Common Interface), DECT, 49/9 digital telephones, 49/8 CONFIRM, OSI layer services, 12/6 CIF (Common Intermediate Format) duobinary, 57/9 Connectors, EMC limiting, 23/24-5 audio visual, 57/27-8 encryption, 14/11-12 Contention multiple access systems, CIR (