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25、ol Based on SIP and SDP - Stage 3 1 Contents 2 3 Foreword vii 4 1 Scope . 1 5 2 References . 1 6 2.1 Normative References.1 7 3 Definitions and abbreviations . 5 8 3.1 Definitions.5 9 3.2 Abbreviations6 10 4 General . 8 11 4.1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols.8
26、 12 4.2 URI and address assignments9 13 4.2A Transport mechanisms.10 14 4.3 Routing principles of IM CN subsystem entities 10 15 4.4 Trust domain .10 16 4.5 Charging correlation principles for IM CN subsystems10 17 4.5.1 Overview.10 18 4.5.2 IM CN subsystem charging identifier (ICID) .11 19 4.5.3 Ac
27、cess network charging information.11 20 4.5.3.1 General11 21 4.5.3.2 IP Connectivity Network charging information 12 22 4.5.4 Inter operator identifier (IOI) 12 23 4.5.5 Charging function addresses .12 24 5 Application usage of SIP 13 25 5.1 Procedures at the UE.13 26 5.1.1 Registration and authenti
28、cation.13 27 5.1.1.1 General13 28 5.1.1.1A Parameters contained in the UE 13 29 5.1.1.1B Security Association Negotiation13 30 5.1.1.2 Initial registration 13 31 5.1.1.3 Initial subscription to the reg event package .15 32 5.1.1.4 User-initiated reregistration.15 33 5.1.1.5 Authentication.16 34 5.1.
29、1.5A Change of IPv6 address due to privacy .19 35 5.1.1.6 User-initiated deregistration19 36 5.1.1.7 Network-initiated deregistration20 37 5.1.2 Subscription and notification 20 38 5.1.2.1 Notification about multiple registered public user identities.20 39 5.1.2.2 General SUBSCRIBE requirements21 40
30、 5.1.2A Generic procedures applicable to all methods excluding the REGISTER method .21 41 5.1.2A.1 Mobile-originating case.21 42 5.1.2A.2 Mobile-terminating case.22 43 5.1.3 Call initiation-mobile originating case 22 44 5.1.3.1 Initial INVITE request 22 45 5.1.4 Call initiation-mobile terminating ca
31、se .23 46 5.1.4.1 Initial INVITE request 23 47 5.1.5 Call release23 48 5.1.6 Emergency service 23 49 5.1.7 Void.24 50 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-873-004
32、-1E ii5.2 Procedures at the P-CSCF. 24 1 5.2.1 General 24 2 5.2.2 Registration. 24 3 5.2.3 Subscription to the users reg event package . 28 4 5.2.4 Registration of multiple public user identities 29 5 5.2.5 Deregistration . 29 6 5.2.5.1 User-initiated deregistration 29 7 5.2.5.2 Network-initiated de
33、registration . 30 8 5.2.6 General treatment for all dialogs and standalone transactions excluding the REGISTER method.9 30 10 5.2.6.1 Introduction. 30 11 5.2.6.2 Determination of mobile-originated or mobile-terminated case . 30 12 5.2.6.3 Requests initiated by the UE. 30 13 5.2.6.4 Requests terminat
34、ed by the UE. 34 14 5.2.7 Initial INVITE request 37 15 5.2.7.1 Introduction. 37 16 5.2.7.2 Mobile-originating case 37 17 5.2.7.3 Mobile-terminating case .37 18 5.2.7.4 IP Connectivity Network charging information 38 19 5.2.8 Call release 38 20 5.2.8.1 P-CSCF-initiated call release 38 21 5.2.8.2 Call
35、 release initiated by any other entity. 39 22 5.2.9 Subsequent requests 39 23 5.2.9.1 Mobile-originating case 39 24 5.2.9.2 Mobile-terminating case .40 25 5.2.10 Emergency service 40 26 5.2.11 Void 40 27 5.3 Procedures at the I-CSCF . 40 28 5.3.1 Registration procedure 40 29 5.3.1.1 General 40 30 5.
36、3.1.2 Normal procedures 40 31 5.3.1.3 Abnormal cases. 40 32 5.3.2 Initial requests. 41 33 5.3.2.1 Normal procedures 41 34 5.3.2.2 Abnormal cases. 42 35 5.3.3 THIG functionality in the I-CSCF(THIG) 42 36 5.3.3.1 General 42 37 5.3.3.2 Encryption for topology hiding. 43 38 5.3.3.3 Decryption for Topolo
37、gy Hiding 43 39 5.3.4 Void 44 40 5.4 Procedures at the S-CSCF. 44 41 5.4.1 Registration and authentication. 44 42 5.4.1.1 Introduction. 44 43 5.4.1.2 Initial registration and user-initiated reregistration. 44 44 5.4.1.3 Authentication and re-authentication 49 45 5.4.1.4 User-initiated deregistration
38、 49 46 5.4.1.5 Network-initiated deregistration . 50 47 5.4.1.6 Network-initiated re-authentication 51 48 5.4.1.7 Notification of Application Servers about registration status . 52 49 5.4.2 Subscription and notification 52 50 5.4.2.1 Subscriptions to S-CSCF events . 52 51 5.4.3 General treatment for
39、 all dialogs and standalone transactions excluding requests terminated by 52 the S-CSCF. 54 53 5.4.3.1 Determination of mobile-originated or mobile-terminated case . 54 54 5.4.3.2 Requests initiated by the served user 54 55 5.4.3.3 Requests terminated at the served user . 57 56 Copyright Telecommuni
40、cations Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-873-004-1E iii5.4.3.4 Original dialog identifier.59 1 5.4.3.5 Void.60 2 5.4.4 Call initiation.60 3 5.4.4.1 Initial INVITE request 60 4 5.4.4.2 Sub
41、sequent requests 60 5 5.4.5 Call release61 6 5.4.5.1 S-CSCF-initiated session release.61 7 5.4.5.2 Session release initiated by any other entity62 8 5.4.6 Call-related requests62 9 5.4.6.1 ReINVITE request.62 10 5.4.7 Void.63 11 5.5 Procedures at the MGCF.63 12 5.5.1 General63 13 5.5.2 Subscription
42、and notification 63 14 5.5.3 Call initiation.63 15 5.5.3.1 Initial INVITE request 63 16 5.5.3.2 Subsequent requests 64 17 5.5.4 Call release65 18 5.5.4.1 Call release initiated by a circuit-switched network65 19 5.5.4.2 IM CN subsystem-initiated call release65 20 5.5.4.3 MGW-initiated call release .
43、65 21 5.5.5 Call-related requests65 22 5.5.5.1 ReINVITE request.65 23 5.5.6 Further initial requests.65 24 5.6 Procedures at the BGCF65 25 5.6.1 General65 26 5.6.2 Session initiation transaction.66 27 5.7 Procedures at the Application Server (AS) .66 28 5.7.1 Common Application Server (AS) procedure
44、s66 29 5.7.1.1 Notification about registration status.66 30 5.7.1.2 Extracting charging correlation information .67 31 5.7.1.3 Access-Network-Info 67 32 5.7.2 Application Server (AS) acting as terminating UA, or redirect server67 33 5.7.3 Application Server (AS) acting as originating UA67 34 5.7.4 A
45、pplication Server (AS) acting as a SIP proxy .68 35 5.7.5 Application Server (AS) performing 3rd party call control.68 36 5.7.5.1 General68 37 5.7.5.2 Call initiation.68 38 5.7.5.3 Call release69 39 5.7.5.4 Call-related requests69 40 5.7.5.5 Further initial requests.69 41 5.7.6 Void.69 42 5.8 Proced
46、ures at the MRFC .69 43 5.8.1 General69 44 5.8.2 Call initiation.69 45 5.8.2.1 Initial INVITE request 69 46 5.8.2.2 Subsequent requests 70 47 5.8.3 Call release71 48 5.8.3.1 S-CSCF-initiated call release 71 49 5.8.3.2 MRFC-initiated call release.71 50 5.8.4 Call-related requests71 51 5.8.4.1 ReINVIT
47、E request.71 52 5.8.4.2 REFER method .72 53 5.8.4.3 INFO method 72 54 5.8.5 Further initial requests.72 55 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-873-004-1E iv6 App
48、lication usage of SDP.72 1 6.1 Procedures at the UE 72 2 6.2 Procedures at the P-CSCF. 73 3 6.3 Procedures at the S-CSCF. 74 4 6.4 Procedures at the MGCF. 74 5 6.4.1 Calls originating from circuit-switched networks. 74 6 6.4.2 Calls terminating in circuit-switched networks 74 7 6.5 Procedures at the
49、 MRFC. 75 8 6.6 Procedures at the AS. 75 9 7 Extensions within the present document.75 10 7.1 SIP methods defined within the present document. 75 11 7.2 SIP headers defined within the present document 75 12 7.2.1 Void 75 13 7.2.2 Void 75 14 7.2.3 Void 75 15 7.2.4 Void 76 16 7.2.5 Void . 76 17 7.2.6 Void 76 18 7.2.7 Void 78 19 7.2.8 Void 78 20 7.2.9 Void 78 21 7.2.10 Void
