Index
100 (Trying) response 347, 363, 364
100rel mechanism 364
180 (Ringing) response 374, 381
183 (Session in Progress) response
callee identity 336
compression negotiation 362
ICID exchange 384
media authorization 384
media negotiation 363
provisional response reliability 364
200 (OK) response
compression negotiation 299
GCID/ICID correlation 386
PRACK requests 348
registration-state information 307
resource reservation 379–80, 381
IMS Voice Call Continuity 454–6
3G (third generation) systems 3, 10–3, 118, 125
3GPP see Third Generation Partnership Project
401 (Unauthorized) response
port setting 286
Security-Server header 291, 292, 293
Sip-Sec-Agree 291
404 (Not Found) response 335
420 (Bad Extension) response 412
a-line see attribute line
AAR see AA-Request
AA-Request (AAR) command 71, 73, 74
ACA see Accounting Answer
Accept-Contact header
IMS Voice Call Continuity 434
Accept header 306
access
IP version 4
multi-access functionality 22
points 422
Access Control List (ACL) 152
Access Point Names (APNs) 69, 422
Accounting Answer (ACA) 77, 81–2, 87
Accounting Request (ACR) 77, 81–2, 87
ACL see Access Control List ...
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