TS 23.218
CT1
★
IP Multimedia (IM) Session Handling –
IM Call Model
use "3GPP‑Page" to get the Word version
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for a better overview, the Table of Contents (ToC) is reproduced
use "ETSI‑search" to get the PDF version
for a better overview, the Table of Contents (ToC) is reproduced
V15.0.0 (PDF)
2018/06 74 p.
V14.0.0
2017/03 76 p.
V13.0.0
2015/03 74 p.
V12.3.0
2013/09 75 p.
V11.6.0
2013/06 75 p.
V10.0.0
2011/03 68 p.
V9.2.0
2010/06 68 p.
V8.6.0
2010/03 68 p.
V7.10.0
2009/12 62 p.
V6.4.0
2006/06 59 p.
V5.9.0
2006/06 59 p.
Rapporteur: Mr. Leis, Peter Nokia Networks
This TS specifies the IP Multimedia (IM) Call Model for handling of an IP multimedia session
origination and termination for an IP Multimedia subscriber.
This TS includes interactions between an Application Server and IP multimedia sessions.
full Table of Contents for TS 23.218 Word version: 15.0.0
1 Scope
2 References
3 Definitions and abbreviations
4 Architecture and information flows for IM multimedia session
5 Functional requirements of network entities
6 Functional requirements of serving CSCF and Transit Function
7 Functional requirements of HSS
8 Functional requirements of the MRFC
9 Generic IP multimedia session handling for SIP Application Servers
10 IP multimedia session handling with IM-SSF Application Server
11 IP multimedia session handling with an OSA-Service Capability Server
12 IP multimedia session handling with an Charging Server
13 Media resource broker (MRB)
A Scalability and deployment considerations for IP multimedia service provision
B Information flows for example services
C Example for Initial filter criteria triggering
D Change history
1 Scope Word-p. 7
2 References
3 Definitions and abbreviations Word-p. 8
4 Architecture and information flows for IM multimedia session Word-p. 11
4.0 Introduction [R7]
4.1 Architecture for a UE-originating IP multimedia session
4.2 Architecture for a UE-terminating IP multimedia session
4.3 Void
4.4 Void
4.5 Void
5 Functional requirements of network entities Word-p. 12
5.1 Architecture for service provision for IP multimedia subsystem 
6 Functional requirements of serving CSCF and Transit Function Word-p. 20
5.1.1 General [R11]
5.1.2 Provision of media resources [R11] Word-p. 13
5.1.2A Border control concepts for the ISC interface [R11]
5.1.3 Border control concepts for other interfaces [R11] Word-p. 14
5.1A IMS communication service identifier (ICSI) [R7] Word-p. 15
5.1B IMS Application Reference Identifier (IARI) [R7] Word-p. 16
5.2 Service interaction with IP multimedia subsystem
6.1 Modes of operation of the S-CSCF and Transit Function
7 Functional requirements of HSS
6.1.1 General overview of functional models and modes of operation of the S-CSCF
6.1.2 General overview of functional models and modes of operation of the Transit Function [R11] Word-p. 21
6.2 Interfaces defined for S-CSCF and Transit Function Word-p. 22
6.2.1 S-CSCF - CSCF (Mw) interface
6.2.2 S-CSCF - Application Server (ISC) interface
6.2.3 S-CSCF - HSS (Cx) interface
6.2.4 S-CSCF - MRB (ISC) interface [R8]
6.2.5 S-CSCF - MRF (Mr) interface [R11]
6.2.6 Transit Function - Application Server (ISC) interface [R11]
6.3 S-CSCF handling of SIP registration
6.4 S-CSCF handling of UE-originating requests Word-p. 23
6.2.4 S-CSCF - MRB (ISC) interface [R8]
6.2.5 S-CSCF - MRF (Mr) interface [R11]
6.2.6 Transit Function - Application Server (ISC) interface [R11]
6.4.1 S-CSCF handling of UE-originating requests, registered user [R7]
6.4.2 S-CSCF handling of UE-originating requests, unregistered user [R7] Word-p. 24
6.5 S-CSCF handling of UE-terminating requests Word-p. 25
6.5.1 S-CSCF handling of UE-terminating requests, registered user
6.5.2 S-CSCF handling of UE-terminating requests, unregistered user Word-p. 26
6.5A Transit Function handling of requests [R11] Word-p. 27
6.6 S-CSCF and Transit Function handling of IP multimedia session release requests Word-p. 28
6.6.0 Introduction [R7]
6.6.1 S-CSCF and Transit Function proxying release request
6.6.2 S-CSCF and Transit Function initiating release request
6.7 S-CSCF handling of subscription and notification Word-p. 29
6.8 S-CSCF handling IMS charging
6.8A Transit Function handling IMS charging [R11] Word-p. 30
6.9 S-CSCF description of subscriber data Word-p. 31
6.9.1 Application Server subscription information
6.9.2 Filter Criteria
6.9.2.0 Introduction [R7]
6.9.2.1 Application Server address
6.9.2.2 Default handling
6.9.2.3 Trigger point
6.9.2.4 iFC Priority
6.9.2.5 Service Information
6.9.2.6 Include Register Request [R8] Word-p. 32
6.9.2.7 Include Register Response [R8]
6.9.3 Authentication data
7.1 Subscriber data related storage requirements for HSS
7.2 Interfaces defined for HSS
8 Functional requirements of the MRFC
7.2.1 HSS - CSCF (Cx) interface
7.2.2 HSS - Application Server (Sh) interface Word-p. 33
7.2.3 HSS - CSE interface
7.2.4 HSS - IM-SSF Application Server interface
7.3 Procedures during IP multimedia registration
7.4 Procedures during IP multimedia sessions
8.1 Functionality of the MRFC
9 Generic IP multimedia session handling for SIP Application Servers Word-p. 37
8.1.1 Overview of MRFC Functionality
8.1.2 Tones and announcements Word-p. 34
8.1.3 Ad-hoc conferences (multiparty calls)
8.1.4 Transcoding Word-p. 35
8.2 Interfaces defined for MRFC
9.1 Architecture
10 IP multimedia session handling with IM-SSF Application Server
11 IP multimedia session handling with an OSA-Service Capability Server
12 IP multimedia session handling with an Charging Server
13 Media resource broker (MRB) [R8] Word-p. 46
9.1.0 Introduction [R7]
9.1.1 Modes of operation between Application Server and S-CSCF Word-p. 38
9.2 Interfaces defined for a SIP Application Server
9.1.1.0 Introduction [R7]
9.1.1.1 Application Server acting as terminating UA, or redirect server
9.1.1.2 Application Server acting as originating UA Word-p. 39
9.1.1.3 Application Server acting as a SIP proxy
9.1.1.4 Application Server performing third party call control/ B2BUA mode
9.1.1.5 Application Server not involved or no longer involved Word-p. 41
9.1.2 Modes of operation between Application Server and Transit Function [R11]
9.1.1.4 Application Server performing third party call control/ B2BUA mode
9.1.1.5 Application Server not involved or no longer involved Word-p. 41
9.2.1 S-CSCF - Application Server (ISC) interface
9.2.2 Application Server - HSS (Sh) interface
9.2.3 Application Server - SLF (Dh) interface [R6]
9.2.4 Application Server - MRFC (Cr) interface [R8]
9.2.5 Application Server - MRB interface (Rc) [R8]
9.2.6 Transit Function - Application Server (ISC) interface [R11] Word-p. 42
9.3 Description of Application Server related subscriber data
9.4 Procedures for multimedia session handling with a SIP based Application Server
9.4.1 Application Server handling of UE-originating requests
9.4.2 Application Server handling of UE-terminating requests Word-p. 43
9.4.3 Application Server handling of SIP registration
9.4.4 Application Server handling of IP multimedia session release requests
9.4.4 Application Server handling of IP multimedia session release requests
9.4.4.1 Session release request terminated at the Application Server
9.4.4.2 Session release request proxied by the Application Server Word-p. 44
9.4.4.3 Session release request initiated by the Application Server
9.4.5 Application server handling of IP multimedia charging Word-p. 45
13.0 General [R11]
13.1 MRB Query Mode Word-p. 47
13.2 MRB In-Line Mode Word-p. 48
13.3 MRB knowledge of MRF resources and other information
A Scalability and deployment considerations for IP multimedia service provision Word-p. 49
B Information flows for example services Word-p. 51
13.1 MRB Query Mode Word-p. 47
13.2 MRB In-Line Mode Word-p. 48
13.3 MRB knowledge of MRF resources and other information
B.1 Call forwarding example
C Example for Initial filter criteria triggering Word-p. 69
D Change history Word-p. 71
B.1.1 Call forwarding through Application Servers
B.2 Announcement, conferencing and transcoding examples using MRFC Word-p. 56
B.1.1.0 Introduction [R7]
B.1.1.1 Service activation and programming Word-p. 52
B.1.1.2 Service invocation and control
B.1.2 Assumptions Word-p. 53
B.1.3 UE redirect based call flows
B.1.4 S-CSCF based redirect call flows Word-p. 54
B.2.1 Example information flow for a UE-originating IP multimedia session that results in playing an announcement
B.2.2 Example information flow for a UE-originating IP multimedia ad-hoc conferencing session (multiparty call) Word-p. 58
B.2.3 Example information flows for a UE-originating IP multimedia session that requires transcoding Word-p. 60
B.3 Example information flows for a voicemail service Word-p. 64
