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3GPP TS 24.229 V8.7.0

(2009-03)

Technical Specification

3rd Generation Partnership Project;

Technical Specification Group Core Network and Terminals;

IP multimedia call control protocol based on

Session Initiation Protocol (SIP)

and Session Description Protocol (SDP);

Stage 3

(Release 8)

The present document has been developed within the 3

Generation Partnership Project (3GPP

) and may be further elaborated for the purposes of 3GPP.

The present document has not been subject to any approval process by the 3GPP

Organizational Partners and shall not be implemented.

This Specification is provided for future development work within 3GPP

only. The Organizational Partners accept no liability for any use of this

Specification.

Specifications and reports for implementation of the 3GPP

system should be obtained via the 3GPP Organizational Partners' Publications Offices.

Contents
Foreword.................................................................................................................................................23
Scope....................................................................................................................................................24
References............................................................................................................................................24
Definitions and abbreviations...............................................................................................................34
1 Definitions............................................................................................................................................................34
2 Abbreviations.......................................................................................................................................................39
3A Interoperability with different IP-CAN.............................................................................................41
General.................................................................................................................................................42
1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols.....................................................42
2 URI and address assignments...............................................................................................................................44
2A Transport mechanisms.......................................................................................................................................45
2B Security mechanisms.........................................................................................................................................46
3 Routeing principles of IM CN subsystem entities...............................................................................................47
4 Trust domain........................................................................................................................................................47
4.1 General 47
4.2 P-Asserted-Identity...........................................................................................................................................48
4.3 P-Access-Network-Info.....................................................................................................................................48
4.4 History-Info.......................................................................................................................................................48
4.5 P-Asserted-Service............................................................................................................................................48
4.6 Resource-Priority..............................................................................................................................................48
4.7 Reason (in a response)......................................................................................................................................48
4.8 P-Profile-Key....................................................................................................................................................48
4.9 P-Served-User...................................................................................................................................................48
4.10 P-Private-Network-Indication.........................................................................................................................49
5 Charging correlation principles for IM CN subsystems......................................................................................49
5.1 Overview...........................................................................................................................................................49
5.2 IM CN subsystem charging identifier (ICID)...................................................................................................49
5.3 Access network charging information..............................................................................................................50
5.3.1 General 50
5.3.2 Access network charging information...........................................................................................................50
5.4 Inter operator identifier (IOI)............................................................................................................................50
5.5 Charging function addresses.............................................................................................................................51
6 Support of local service numbers.........................................................................................................................51
7 Emergency service...............................................................................................................................................51
8 Tracing of signalling............................................................................................................................................52
8.1 General 52
8.2 Trace depth........................................................................................................................................................52
9 Overlap signalling................................................................................................................................................52
9.1 General 52
9.2 Overlap signalling methods...............................................................................................................................52
9.2.1 In-dialog method............................................................................................................................................52
9.2.1.1 General 52
9.2.2 Multiple-INVITE method..............................................................................................................................52
9.2.2.1 General 52
9.3 Routeing impacts...............................................................................................................................................53
9.3.1 General 53
9.3.2 Deterministic routeing....................................................................................................................................53
9.3.3 Digit collection...............................................................................................................................................53
Application usage of SIP......................................................................................................................53
1 Procedures at the UE............................................................................................................................................53
1.0 General 53
1.1 Registration and authentication.........................................................................................................................54
1.1.1 General 54
3GPP
3GPP TS 24.229 V8.7.0 (2009-03)3Release 8

1.1.1A Parameters contained in the ISIM...............................................................................................................54
1.1.1B Parameters provisioned to a UE without ISIM or USIM............................................................................55
1.1.1B.1 Parameters provisioned in the IMC..........................................................................................................55
1.1.1B.2 Parameters when UE does not contain ISIM, USIM or IMC...................................................................55
1.1.2 Initial registration...........................................................................................................................................55
1.1.2.1 General 55
1.1.2.2 Initial registration using IMS AKA.............................................................................................................57
1.1.2.3 Initial registration using SIP digest without TLS........................................................................................58
1.1.2.4 Initial registration using SIP digest with TLS.............................................................................................59
1.1.2.5 Initial registration using NASS-IMS bundled authentication.....................................................................59
1.1.2.6 Initial registration using GPRS-IMS-Bundled authentication....................................................................60
1.1.3 Subscription to the registration-state event package......................................................................................60
1.1.3A Subscription to the debug event package....................................................................................................61
1.1.4 User-initiated reregistration and registration of an additional public user identity........................................62
1.1.4.1 General 62
1.1.4.2 IMS AKA as a security mechanism............................................................................................................64
1.1.4.3 SIP digest without TLS as a security mechanism.......................................................................................64
1.1.4.4 SIP digest with TLS as a security mechanism............................................................................................65
1.1.4.5 NASS-IMS bundled authentication as a security mechanism.....................................................................65
1.1.4.6 GPRS-IMS-Bundled authentication as a security mechanism....................................................................65
1.1.5 Authentication................................................................................................................................................66
1.1.5.1 IMS AKA - general.....................................................................................................................................66
1.1.5.2 Void 67
1.1.5.3 IMS AKA abnormal cases..........................................................................................................................67
1.1.5.4 SIP digest without TLS – general...............................................................................................................68
1.1.5.5 SIP digest without TLS – abnormal procedures.........................................................................................68
1.1.5.6 SIP digest with TLS – general....................................................................................................................68
1.1.5.7 SIP digest with TLS – abnormal procedures...............................................................................................69
1.1.5.8 NASS-IMS bundled authentication – general.............................................................................................69
1.1.5.9 NASS-IMS bundled authentication – abnormal procedures.......................................................................69
1.1.5.10 GPRS-IMS-Bundled authentication – general..........................................................................................69
1.1.5.11 GPRS-IMS-Bundled authentication – abnormal procedures....................................................................69
1.1.5.12 Abnormal procedures for all security mechanisms...................................................................................69
1.1.5A Network-initiated re-authentication............................................................................................................69
1.1.5B Change of IPv6 address due to privacy.......................................................................................................70
1.1.6 User-initiated deregistration...........................................................................................................................70
1.1.6.1 General 70
1.1.6.2 IMS AKA as a security mechanism............................................................................................................71
1.1.6.3 SIP digest without TLS as a security mechanism.......................................................................................72
1.1.6.4 SIP digest with TLS as a security mechanism............................................................................................72
1.1.6.5 NASS-IMS bundled authentication as a security mechanism.....................................................................73
1.1.6.6 GPRS-IMS-Bundled authentication as a security mechanism....................................................................73
1.1.7 Network-initiated deregistration....................................................................................................................73
1.2 Subscription and notification............................................................................................................................74
1.2.1 Notification about multiple registered public user identities.........................................................................74
1.2.2 General SUBSCRIBE requirements..............................................................................................................75
1.2A Generic procedures applicable to all methods excluding the REGISTER method........................................75
1.2A.1 UE-originating case.....................................................................................................................................75
1.2A.1.1 General 75
1.2A.1.2 Structure of Request-URI.........................................................................................................................79
1.2A.1.3 UE without dial string processing capabilities.........................................................................................79
1.2A.1.4 UE with dial string processing capabilities..............................................................................................80
1.2A.1.5 Setting the "phone-context" tel URI parameter........................................................................................80
1.2A.1.6 Abnormal cases........................................................................................................................................81
1.2A.2 UE-terminating case....................................................................................................................................81
1.3 Call initiation - UE-originating case.................................................................................................................83
1.3.1 Initial INVITE request...................................................................................................................................83
1.4 Call initiation - UE-terminating case................................................................................................................85
1.4.1 Initial INVITE request...................................................................................................................................85
1.5 Call release........................................................................................................................................................86
1.6 Emergency service............................................................................................................................................86
3GPP
3GPP TS 24.229 V8.7.0 (2009-03)4Release 8

5.1.6.1 General 86

5.1.6.2 Initial emergency registration........................................................................................................................86

5.1.6.2A New initial emergency registration.............................................................................................................87

5.1.6.3 Initial subscription to the registration-state event package............................................................................87

5.1.6.4 User-initiated emergency reregistration.........................................................................................................87

5.1.6.5 Authentication................................................................................................................................................87

5.1.6.6 User-initiated emergency deregistration........................................................................................................87

5.1.6.7 Network-initiated emergency deregistration..................................................................................................88

5.1.6.8 Emergency session setup................................................................................................................................88

5.1.6.8.1 General 88

5.1.6.8.2 Emergency session set-up in case of no registration...................................................................................88

5.1.6.8.3 Emergency session set-up within an emergency registration.....................................................................90

5.1.6.8.4 Emergency session setup within a non-emergency registration.................................................................91

5.1.6.9 Emergency session release.............................................................................................................................93

5.1.6.10 Response to non-UE detectable emergency call..........................................................................................93

5.1.7 Void 94

5.1.8 Maintaining flows and detecting flow failures..................................................................................................94

5.2 Procedures at the P-CSCF....................................................................................................................................94

5.2.1 General 94

5.2.2 Registration.......................................................................................................................................................96

5.2.2.1 General 96

5.2.2.2 IMS AKA as a security mechanism...............................................................................................................99

5.2.2.3 SIP digest without TLS as a security mechanism........................................................................................102

5.2.2.4 SIP digest with TLS as a security mechanism.............................................................................................103

5.2.2.5 NASS-IMS bundled authentication as a security mechanism......................................................................104

5.2.2.6 GPRS-IMS-Bundled authentication as a security mechanism.....................................................................105

5.2.3 Subscription to the user's registration-state event package.............................................................................105

5.2.3A Subscription to the user's debug event package...........................................................................................106

5.2.4 Registration of multiple public user identities................................................................................................106

5.2.5 Deregistration..................................................................................................................................................107

5.2.5.1 User-initiated deregistration.........................................................................................................................107

5.2.5.2 Network-initiated deregistration..................................................................................................................108

5.2.6 General treatment for all dialogs and standalone transactions excluding the REGISTER method................109

5.2.6.1 Introduction..................................................................................................................................................109

5.2.6.2 Determination of UE-originated or UE-terminated case.............................................................................109

5.2.6.3 Requests initiated by the UE........................................................................................................................109

5.2.6.3.1 General for all requests.............................................................................................................................109

5.2.6.3.2 General for all responses...........................................................................................................................110

5.2.6.3.2A Abnormal cases......................................................................................................................................110

5.2.6.3.3 Initial request for a dialog.........................................................................................................................110

5.2.6.3.4 Responses to an initial request for a dialog...............................................................................................112

5.2.6.3.5 Target refresh request for a dialog............................................................................................................112

5.2.6.3.6 Responses to a target refresh request for a dialog.....................................................................................113

5.2.6.3.7 Request for a standalone transaction.........................................................................................................113

5.2.6.3.8 Responses to a request for a standalone transaction.................................................................................114

5.2.6.3.9 Subsequent request other than a target refresh request.............................................................................114

5.2.6.3.10 Responses to a subsequent request other than a target refresh request...................................................115

5.2.6.3.11 Request for an unknown method that does not relate to an existing dialog............................................115

5.2.6.3.12 Responses to a request for an unknown method that does not relate to an existing dialog....................116

5.2.6.4 Requests terminated by the UE....................................................................................................................116

5.2.6.4.1 General for all requests.............................................................................................................................116

5.2.6.4.2 General for all responses...........................................................................................................................116

5.2.6.4.3 Initial request for a dialog.........................................................................................................................116

5.2.6.4.4 Responses to an initial request for a dialog...............................................................................................117

5.2.6.4.5 Target refresh request for a dialog............................................................................................................118

5.2.6.4.6 Responses to a target refresh request for a dialog.....................................................................................119

5.2.6.4.7 Request for a standalone transaction.........................................................................................................119

5.2.6.4.8 Responses to a request for a standalone transaction.................................................................................120

5.2.6.4.9 Subsequent request other than a target refresh request.............................................................................121

5.2.6.4.10 Responses to a subsequent request other than a target refresh request...................................................121

5.2.6.4.11 Request for an unknown method that does not relate to an existing dialog............................................121

3GPP

3GPP TS 24.229 V8.7.0 (2009-03)5Release 8

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