
IP Telephony Configuration Guide
171
Index
Symbols
<&nopage>Voice Activity Detection, see VAD 135
Numbers
3-port switch
IP telephones 43
relocating IP telephones 63
A
absorbed length 85
access code
line pool 76
network example 92
Unified Manager programming 77
acronyms 14
active calls, deregistering disruption 62
Address Range, IP telephones 50
a-law 145
Alias Names, Local Gateway 106
Aliases, Radvision 109
Allowed Services, Radvision 109
assessment
network 30
resources, prerequisite 31
asymmetrical
media channel negotiation 145
routing 134
Asynchronous Transfer Mode (ATM) 122
B
background noise 140
bandwidth
available for other data 140
characteristics 122
determining requirements 121
full duplex links 125
half duplex link, silence suppression 124
half duplex links 124
peak 123
silence compression 135
spare bandwidth 122
before you start
IP telephony and network prerequisites 29
NetVision 69
block IP telephone dialout 49
bottlenecks 131
bridges, network prerequisites 29
buffer, jitter 43
buffers, VoIP trunks 76
Business Communications Manager
call chain network configuration 119
connecting to remote IP telephones 120
gateway/router support 161
H.323 gateway specifications 143
MCDN system requirements 116
network device prerequisites 30
networking multi-locations, with call center 119
networking multiple systems 117
port settings 101
signaling method 104
system configuration prerequisites 34
using a gatekeeper 104
using firewalls 101
busy tone, VoIP gateway progress tones 146
C
call center, networking multi-locations 119
call chain network configuration 119
call progress tones 146
Call Signaling, Local Gateway 106
call signaling, modifying 104
calls
gatekeeper examples 113
incoming configuration 89
making 95
media path redirection 144
capacity
engineering link capacity 130
insufficient 130
Caution symbol 13
CDP
network dialing plan 93
private network MCDN 116
changes to the intranet 134
checklist 29
clients, media resources, voice mail, media resources,
WAN
media resources 31
codecs
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