164 numbers, 16, 120
Eavesdropping, 91, 92, 139
ECF parameter, 163
.edu, 96
80/20 rule, 46
E-mail address, 84
Emergency calls, 78
Emergency session establishment,
134??“135
Encoding, accept, 69
Encryption, 91, 92
and access security, 150, 151,
154??“155
and air interface, 142
and confidentiality, 145??“146
downfalls of, 154
for eavesdropping prevention, 139
and network domain security, 159
for outbound traffic, 48
Encryption keys, 18, 84, 85
End of SUBSCRIBE dialog, 191
Enhanced GPRS, 9
ENUM function, 97, 120
ENUM/DNS application, 16
Equipment Serial Number (ESN), 90
Error handling, 169
Error-Info (SIP header), 72
ESN (Equipment Serial Number), 90
Establishing sessions in IMS, 127,
128, 130??“135
of basic sessions, 128, 130??“134
of emergency sessions, 134??“135
and media negotiation, 132??“134
routing requests for, 130??“132
Europe, SS7 implementation in, 9, 40
EVENT (SIP header), 73, 117, 118
Event AVP, 188, 192
Event collection function, 76
Event notification, 19, 117, 118
Event sessions, 198
Event-based charging function,
166, 173
Event-type AVP, 188, 192
Exit Message (EXM), 121??“122
EXM (see Exit Message)
Expected response (XRES), 156, 157
Expiration, 74, 114
EXPIRES (SIP header), 73, 111,
114??“118
F
Failures, cause of, 190, 191
File Transfer Protocol (FTP), 37
Fill-in signal unit (FISU), 31
Filtering, 169
Final (reporting reason), 194
Firewall:
I-CSCF as, 15
STP as, 6
FISU (fill-in signal unit), 31
Flooding, SMS, 147
Flooring, control of, 22
Fmtp (in media attribute line), 85
Forbidden (SIP response), 67
Forced de-registration, 116
Forced_reauthorization
(reporting reason), 194
Forking capability, 16
Format-specific parameters
(in media attribute line), 85
Forward call indicators, 126
Frame rate (in media attribute
line), 85
Fraud deterrernce, 96
Fraud management systems, 175
Free-format-data, 193
Freephone, 119
FROM (SIP header), 73, 111, 115,
117, 118, 132, 136
FTP (File Transfer Protocol), 37
Furnish-charging-information, 193
G
Gateway function, 6
invalid response to, 68
Gateway GPRS Support Node
(GGSN), 9, 24, 51, 52
Gateway MSC, 22
Gateway screening, 6
General Packet Radio Service
(GPRS), 8, 9, 22, 24, 30, 51??“52
Geography assignment, 14, 112
GETS (Government Emergency
Telephone System), 135
GGSN (see Gateway GPRS
Support Node)
GGSN-address AVP, 188, 192
Global failure responses, 68
Global Title Translation (GTT), 6
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