index_G

G

gatekeepers, 192

gateways

APIs and, 463

described, 192, 428-429

Exterior Gateway Protocol, 159

H.323 networks and, 192

mainframe, 459-463

sessions and, 461

TCP/IP routing and, 449-450

types of, 459-460

workstation software and, 462-463

generators, 287-288

GI (Graded Index) 68

glossary, 617-646

gopher tool, 218

GPC (Graphics Performance Characterization), 519

GSM and TDMA Cellular Networks, 83-87, 91-92