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Gateways, 116–24
access, 119
applications, 117–19
business, 119
circuit switches, 119
cluster controller emulation, 118
conclusion, 125
defined, 116
e-mail system interconnection, 118
facilitative protocols, 119–24
functionality in OSI model, 117
Internet/PSTN interconnectivity, 118
IVR/announcement, 119
protocol conversion software, 116
residential, 119
SNA, 117
trunking, 118
for voice applications, 118–19
voice over ATM, 118
Generators, 74
Gigabit Ethernet, 11–13, 79
defined, 11
Fibre Channel, 12
full duplex support, 11
functional elements, 12
initial applications, 13
over copper, 12
standards summary, 13
See also LANs
Global Dispatch, 37
Global Information Assurance Certification (GIAC), 333
Graphical SNMP tools, 269–70
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