net, 97
Network databases, 6
Network domain security, 157??“160
Network monitoring, 37??“38
Network Solutions, 98
Networks:
access to IMS, 13
consolidating, 105
degrading service to, 140??“141
evolution of, 2
session management by, 198
911 numbers, 135
Node-functionality AVP, 188, 190, 193
Nodes, 92
Non-repudiation, 149??“150
Normal end of session, 191
Not Acceptable (SIP response), 68
Not Acceptable Here
(SIP response), 67
Not Implemented (SIP response), 67
NOTIFY (SIP method), 62??“63, 118
NS/EP IR working group, 135
Number Portability, 4, 6, 9, 88, 119
O
OCF (see Online collection function)
OCS (see Online charging system)
Offline charging, 175??“178
accounting-answer, 175, 177, 178
accounting-request, 175??“177
architecture for, 167??“171
procedures/message flow, 198, 199
OK (SIP response), 66
Online charging, 177??“186
architecture for, 163??“167
capabilities-exchange-answer,
185, 186
capabilities-exchange-request,
183, 185
credit-control-answer, 181??“183
credit-control-request, 178??“181
device-watchdog-answer, 185, 186
device-watchdog-request, 185, 186
procedures/message flow, 197??“199
re-auth-answer, 183, 184
re-auth-request, 181, 184
Online charging system (OCS), 162,
164, 166, 167, 177, 197??“198
Online collection function (OCF),
163??“166
Operational support systems/backoffice
support system (OSS/
BSS), 36??“39, 169
Operations support systems
(OSSs), 1, 55
OPTIONS (SIP method), 63
OPTION-TAGS, 67
.
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