SIST ES 283 003 V2.5.1:2008

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) - IP Multimedia Call Control Protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3

The present document provides the ETSI TISPAN endorsement of 3GPP TS 24.229 [1]: "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 7)" in line with the requirements of TISPAN NGN. The present document together with the endorsed document provides the necessary SIP/SDP specifications for supporting TISPAN Release 2 requirements, with the exception of some of the features required for Business Trunking services (e.g. procedures for handling Wildcarded Public User Identities) and IPTV services (e.g. SDP extensions). Modifications required in support of these features are expected to be included as essential corrections to the present document.

Zlite telekomunikacijske in internetne storitve ter protokoli za napredno omreženje (TISPAN) - 3. stopnja protokola za krmiljenje IP-večpredstavnostnih klicev na podlagi protokola za zagon seje (SIP) in protokola za opis seje (SDP)

General Information

• Status: Published
• Publication Date: 01-Jun-2008
• ICS: 33.040.01 - Telecommunication systems in general
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Apr-2008
• Due Date: 27-Jun-2008
• Completion Date: 02-Jun-2008
• Ref Project: ETSI ES 283 003 V2.5.1 (2008-04) - Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); IP Multimedia Call Control Protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 [3GPP TS 24.229 [Release 7], modified]

Standards Content (Sample)

ETSI ES 283 003 V2.5.1 (2008-04)
ETSI Standard

Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
IP Multimedia Call Control Protocol based on
Session Initiation Protocol (SIP) and
Session Description Protocol (SDP) Stage 3
[3GPP TS 24.229 [Release 7], modified]

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2 ETSI ES 283 003 V2.5.1 (2008-04)



Reference
RES/TISPAN-03120-NGN-R2
Keywords
endorsement, IP, multimedia, profile
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© European Telecommunications Standards Institute 2008.
All rights reserved.

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3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI

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3 ETSI ES 283 003 V2.5.1 (2008-04)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
2.1 Normative references.5
Endorsement notice .6
Global modifications to 3GPP TS 24.229 .6
Annex ZA (informative): .117
ZA.1 Void.117
ZA.2 Void.117
ZA.3 Void.117
ZA.4 Void.117
ZA.5 Void.117
ZA.6 Void.117
ZA.7 Void.117
ZA.8 Void.117
ZA.9 Void.117
ZA.9A Void.117
ZA.10 Void.117
ZA.11 Extensions needed in table A.162 of ES 283 003 .118
Annex ZB (informative): Procedures.119
Annex ZC (normative): UUI Header Field.120
ZC.1 Introduction .120
ZC.2 Procedures at the terminating network.120
ZC.3 Extensions needed in table A.4 of ES 283 003 .121
Annex ZD (normative): XML schema for PSTN .122
Annex ZE (informative): Change history .130
History .131

ETSI

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4 ETSI ES 283 003 V2.5.1 (2008-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
ETSI

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5 ETSI ES 283 003 V2.5.1 (2008-04)
1 Scope
The present document provides the ETSI TISPAN endorsement of 3GPP TS 24.229 [1]: "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 7)" in line with the
requirements of TISPAN NGN.
The present document together with the endorsed document provides the necessary SIP/SDP specifications for
supporting TISPAN Release 2 requirements, with the exception of some of the features required for Business Trunking
services (e.g. procedures for handling Wildcarded Public User Identities) and IPTV services (e.g. SDP extensions).
Modifications required in support of these features are expected to be included as essential corrections to the present
document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] 3GPP TS 24.229 (V7.9.0): "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".
[2] ETSI TS 183 008: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Terminating Identification
Presentation (TIP) and Terminating Identification Restriction (TIR); Protocol specification".
[3] ETSI TS 183 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Originating Identification
Presentation (OIP) and Originating Identification Restriction (OIR); Protocol specification".
ETSI

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6 ETSI ES 283 003 V2.5.1 (2008-04)
Endorsement notice
The present document endorses 3GPP TS 24.229 (V7.9.0): "IP Multimedia Call Control Protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 (Release 7)" [1].
The present document shows the modifications, additions and deletions through the use of underlined and strikethrough
text.
For the purpose of the present document clause 1 of [1] applies.
For the purpose of the present document clause 3 of [1] applies except for clause 3.2, which is replaced by the
appropriate clause in clause 3 of the present document.
For the purpose of the present document clause 4 of [1] applies, except for clauses 4.1 and 4.2, which are replaced by
the appropriate clauses in clause 4 of the present document.
For the purpose of the present document clause 5 of [1] applies, except for clauses 5.1.1.1A, 5.1.1.2, 5.1.1.3, 5.1.1.4,
5.1.1.5.1, 5.1.1.5.2, 5.1.1.5A, 5.1.1.6, 5.1.1.7, 5.1.2A.1, 5.1.2.A2, 5.2.1, 5.2.2, 5.2.5.1, 5.2.5.2, 5.2.6.2, 5.2.6.3, 5.2.6.4,
5.2.7.2, 5.2.7.3, 5.2.8.1.1, 5.2.8.1.2, 5.2.8.1.4, 5.2.8.3, 5.2.10.1, 5.2.10.3, 5.4.1.1, 5.4.1.2, 5.4.1.2.1, 5.4.1.3, 5.4.1.4,
5.4.1.6, 5.4.1.7, 5.4.3.2, 5.4.3.3 and 5.10.6, which are replaced by the appropriate clauses in clause 5 of the present
document. In addition clauses 5.1.1.1B, 5.1.1.2A, 5.1.1.4A, 5.1.1.5.1A, 5.1.1.5.1B, 5.1.1.6A, 5.2.2A and 5.4.1.2A.1 are
added.
For the purpose of the present document clause 6 of [1] applies, except for clauses 6.1.1 and 6.2 , which are replaced by
the appropriate clauses in clause 6 of the present document.
For the purpose of the present document clause 7 of [1] applies, except for clause 7.2A.4, which is replaced by the
appropriate clause in clause 7 of the present document.
For the purpose of the present document clause 9 of [1] applies.
For the purpose of the present document annex A of [1] applies, except for clauses A.2.1.2, A.2.1.4.7, A2.1.4.12,
A.2.2.4.7 and A.3.2.1 which are replaced by the appropriate clauses in annex A of the present document.
For the purpose of the present document annex F of [1] is replaced with annex F of the present document.
For the purpose of the present document annex G of [1] is replaced with annex G of the present document.
For the purpose of the present document annex I of [1] applies.
For the purpose of the present document annex J of [1] applies, except for clauses J.1 and J.2 which are replaced by the
appropriate clauses in annex J of the present document. In addition clause J.9A is added.
For the purpose of the present document annex F of [1] applies, except for clauses F.4.1 and F.4.2 which are replaced as
indicated in the appropriate clauses in annex F of the present document.
For the purpose of the present document annex F of [1] applies with the addition of clause F.4A.
Global modifications to 3GPP TS 24.229
The references in clause 2 of [1] should be replaced as shown in table 1.
Table 1
References in 3GPP TS 24.229 [1] Replaced references
[2] 3GPP TS 23.002: "Network architecture". ETSI ES 282 007: "Telecommunications and Internet converged
Services and Protocols for Advanced Networking (TISPAN); IP
Multimedia Subsystem (IMS); Functional architecture" (note 1)
ETSI ES 282 001: "Telecommunications and Internet converged
Services and Protocols for Advanced Networking (TISPAN); NGN
Functional Architecture Release 2" (note 1)
[4A] 3GPP TS 23.107: "Quality of Service (QoS) (note 2)
concept and architecture".
ETSI

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7 ETSI ES 283 003 V2.5.1 (2008-04)
References in 3GPP TS 24.229 [1] Replaced references
[4B] 3GPP TS 23.167: "IP Multimedia ETSI TS 182 009: “Telecommunications and Internet converged
Subsystem (IMS) emergency session; Stage 2". Services and Protocols for Advanced Networking (TISPAN); NGN
Architecture to support emergency communication from citizen to
authority” (note 1)
[4C] 3GPP TS 23.122: "Non-Access-Stratum (note 2)
(NAS) functions related to Mobile Station (MS)
in idle mode".
[5] 3GPP TS 23.218: "IP Multimedia (IM) (note 2)
Session Handling; IM call model".
[6] 3GPP TS 23.221: "Architectural (note 2)
requirements".
[7] 3GPP TS 23.228: "IP multimedia subsystem; ETSI TS 182 006: "Telecommunications and Internet converged
Stage 2". Services and Protocols for Advanced Networking (TISPAN); IP
Multimedia Subsystem (IMS); Stage 2 description"
[8] 3GPP TS 24.141: "Presence service using ETSI ES 283 030: "Telecommunications and Internet converged
the IP Multimedia (IM) Core Network (CN) Services and Protocols for Advanced Networking (TISPAN);
subsystem; Stage 3". Presence Service Capability; Protocol Specification [3GPP TS 24.141
V7.0.0, modified and OMA-TS-Presence_SIMPLE-V1_0, modified]"
(note 1)
[10] 3GPP TS 26.235: "Packet switched ETSI TS 181 005: "Telecommunications and Internet converged
conversational multimedia applications; Default Services and Protocols for Advanced Networking (TISPAN); Services
codecs". and Capabilities Requirements” (note 1)
[10A] 3GPP TS 27.060: "Mobile Station (MS) (note 2)
supporting Packet Switched Services".
[11A] 3GPP TS 29.162: "Interworking between ETSI TS 183 021: "Telecommunications and Internet converged
the IM CN subsystem and IP networks". Services and Protocols for Advanced Networking (TISPAN); NGN
Release 1; Endorsement of 3GPP TS 29.162 Interworking between
IM CN Sub-system and IP networks" (note 1)
[11B] 3GPP TS 29.163: "Interworking between ETSI ES 283 027: “Telecommunications and Internet converged
the IP Multimedia (IM) Core Network (CN) Services and Protocols for Advanced Networking (TISPAN);
subsystem and Circuit Switched (CS) networks". Endorsement of the SIP-ISUP Interworking between the IP
Multimedia (IM) Core Network (CN) subsystem and Circuit Switched
(CS) networks [3GPP TS 29.163 (Release 7), modified]“ (note 1)
[14] 3GPP TS 29.228: "IP Multimedia (IM) ETSI TS 183 033: "Telecommunications and Internet converged
Subsystem Cx and Dx Interfaces; Signalling Services and Protocols for Advanced Networking (TISPAN); IP
flows and message contents". Multimedia; Diameter based protocol for the interfaces between the
Call Session Control Function and the User Profile Server
Function/Subscription Locator Function; Signalling flows and protocol
details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0,
modified]" (note 1)
[15] 3GPP TS 29.229: "Cx and Dx Interfaces ETSI TS 183 033: "Telecommunications and Internet converged
based on the Diameter protocol, Protocol Services and Protocols for Advanced Networking (TISPAN); IP
details". Multimedia; Diameter based protocol for the interfaces between the
Call Session Control Function and the User Profile Server
Function/Subscription Locator Function; Signalling flows and protocol
details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0,
modified]" (note 1)
[16] 3GPP TS 32.240: "Telecommunication ETSI ES 282 010: "Telecommunications and Internet Converged
management; Charging management; Charging Services and Protocols for Advanced Networking (TISPAN); Charging
architecture and principles". (Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260
Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7
and 3GPP TS 32.299 Release 7 modified)" (note 1)
[17] 3GPP TS 32.260: "Telecommunication ETSI ES 282 010: "Telecommunications and Internet Converged
management; Charging management; IP Services and Protocols for Advanced Networking (TISPAN); Charging
Multimedia Subsystem (IMS) charging". [Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260
Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7
and 3GPP TS 32.299 Release 7modified]" (note 1)
[19] 3GPP TS 33.203: "Access security for IP (note 2)
based services".
[67] draft-rosenberg-sipping-acr-code-00 New reference. Editor's note: The document cannot be formally
(November 2005): "Rejecting Anonymous referenced until it is published as an RFC (note 1)
Requests in the Session Initiation Protocol
(SIP)".
ETSI

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8 ETSI ES 283 003 V2.5.1 (2008-04)
References in 3GPP TS 24.229 [1] Replaced references
[68] draft-jennings-sip-voicemail-uri-05 IETF RFC 4458: "Session Initiation Protocol (SIP) URIs for
(November 2005): "Session Initiation Protocol Applications such as Voicemail and Interactive Voice Response
(SIP) URIs for Applications such as Voicemail (IVR)" (note 1)
and Interactive Voice Response (IVR)".
[85] 3GPP2 C.S0005-D (March 2004): "Upper (note 2)
Layer (Layer 3) Signalling Standard for
cdma2000 Standards for Spread Spectrum
Systems".
[86] 3GPP2 C.S0024-A v1.0 (April 2004): (note 2)
"cdma2000 High Rate Packet Data Air Interface
Standard".
[87] ITU-T Recommendation J.112, (note 2)
"Transmission Systems for Interactive Cable
Television Services"
[88] PacketCable Release 2 Technical Report, (note 2)
PacketCable™ Architecture Framework
Technical Report, PKT-TR-ARCH-FRM.
NOTE 1: The reference in [1] is replaced by the document listed on the right column. This replacement is applicable
to all occurrences of the reference throughout the present endorsement.
NOTE 2: The reference in [1] contains 3GPP or 3GPP2 or cable specific requirements and is not generally applicable
to the present endorsement.

3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, clause 3.1 of [1] applies.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
1xx A status-code in the range 101 through 199, and excluding 100
2xx A status-code in the range 200 through 299
AAA Authentication, Authorization and Accounting
AS Application Server
APN Access Point Name
AUTN Authentication TokeN
B2BUA Back-to-Back User Agent
BGCF Breakout Gateway Control Function
c conditional
BRAS Broadband Remote Access Server
CCF Charging Collection Function
CDF Charging Data Function
CDR Charging Data Record
CK Ciphering Key
CN Core Network
CPC Calling Party Category
CSCF Call Session Control Function
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
DOCSIS Data Over Cable Service Interface Specification
DTD Document Type Definition
EC Emergency Centre
ECF Event Charging Function
E-CSCF Emergency CSCF
FQDN Fully Qualified Domain Name
GCID GPRS Charging Identifier
GGSN Gateway GPRS Support Node
GPRS General Packet Radio Service
GRUU Globally Routable User agent URI
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9 ETSI ES 283 003 V2.5.1 (2008-04)
HPLMN Home PLMN
HSS Home Subscriber Server
i irrelevant
IARI IMS Application Reference Identifier
IBCF Interconnection Border Control Function
I-CSCF Interrogating CSCF
ICID IM CN subsystem Charging Identifier
ICSI IMS Communication Service Identifier
IK Integrity Key
IM IP Multimedia
IMS IP Multimedia core network Subsystem
IMS-ALG IMS Application Level Gateway
IMSI International Mobile Subscriber Identity
IOI Inter Operator Identifier
IP Internet Protocol
IP-CAN IP-Connectivity Access Network
IPsec IP security
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
ISC IP Multimedia Subsystem Service Control
ISIM IM Subscriber Identity Module
IWF Interworking Function
I-WLAN Interworking – WLAN
LRF Location Retrieval Function
m mandatory
MAC Message Authentication Code
MCC Mobile Country Code
MGCF Media Gateway Control Function
MGW Media Gateway
MNC Mobile Network Code
MRFC Multimedia Resource Function Controller
MRFP Multimedia Resource Function Processor
n/a not applicable
NAI Network Access Identifier
NA(P)T Network Address (and Port) Translation
NASS Network Attachement Subsystem
NAT Network Address Translation
o optional
OCF Online Charging Function
PCRF Policy and Charging Rules Function
P-CSCF Proxy CSCF
PDG Packet Data Gateway
PDP Packet Data Protocol
PDU Protocol Data Unit
PIDF-LO Presence Information Data Format Location Object
PLMN Public Land Mobile Network
PSAP Public Safety Answering Point
PSI Public Service Identity
PSTN Public Switched Telephone Network
QoS Quality of Service
RAND RANDom challenge
RES RESponse
RTCP Real-time Transport Control Protocol
RTP Real-time Transport Protocol
S-CCF Serving CSCF
SCTP Stream Control Transmission Protocol
SDP Session Description Protocol
SIP Session Initiation Protocol
SLF Subscription Locator Function
SQN SeQuence Number
UA User Agent
UAC User Agent Client
ETSI

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10 ETSI ES 283 003 V2.5.1 (2008-04)
UAS User Agent Server
UE User Equipment
UICC Universal Integrated Circuit Card
URI Uniform Resource Identifier
URL Uniform Resource Locator
URN Uniform Resource Name
UDVM Universal Decompressor Virtual Machine
UPSF User Profile Server Function
USIM Universal Subscriber Identity Module
VPLMN Visited PLMN
WLAN Wireless Local Area Network
x prohibited
xDSL Digital Subscriber Line (all types)
XMAC expected MAC
XML eXtensible Markup Language
4 General
4.1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols
SIP defines a number of roles which entities can implement in order to support capabilities. These roles are defined in
annex A.
Each IM CN subsystem functional entity using an interface at the Gm reference point, the Ma reference point, the Mg
reference point, the Mi reference point, the Mj reference point, the Mk reference point, the Mm reference point, the Mr
reference point and the Mw reference point, and also using the IP multimedia Subsystem Service Control (ISC)
Interface, shall implement SIP, as defined by the referenced specifications in annex A, and in accordance with the
constraints and provisions specified in annex A, according to the following roles.
The Gm reference point, the Ma reference point, the Mg reference point, the Mi reference point, the Mj reference point,
the Mk reference point, the Mm reference point, the Mr reference point, the Mw reference point and the ISC reference
point are defined in 3GPP TS 23.002 [2].
- The User Equipment (UE) shall provide the User Agent (UA) role, with the exceptions and additional
capabilities to SIP as described in subclause 5.1, with the exceptions and additional capabilities to SDP as
described in subclause 6.1, and with the exceptions and additional capabilities to SigComp as described in
subclause 8.1. The UE shall also provide the access dependent procedures as described in the annexes,
e.g. GPRS specific procedures described in subclause B.2.2.
- The P-CSCF shall provide the proxy role, with the exceptions and additional capabilities to SIP as described in
subclause 5.2, with the exceptions and additional capabilities to SDP as described in subclause 6.2, and with
the exceptions and additional capabilities to SigComp as described in subclause 8.2. Under certain
circumstances as described in subclause 5.2, the P-CSCF shall provide the UA role with the additional
capabilities, as follows:
a) when acting as a subscriber to or the recipient of event information; and
b) when performing P-CSCF initiated dialog-release, even when acting as a proxy for the remainder of the
dialog.
- The I-CSCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.3.
- The S-CCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.4, and with the exceptions and additional capabilities to SDP as described in subclause 6.3. Under
certain circumstances as described in subclause 5.4, the S-CCF shall provide the UA role with the additional
capabilities, as follows:
a) the S-CCF shall also act as a registrar. When acting as a registrar, or for the purposes of executing a
third-party registration, the S-CCF shall provide the UA role;
b) as the notifier of event information the S-CCF shall provide the UA role;
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11 ETSI ES 283 003 V2.5.1 (2008-04)
c) when providing a messaging mechanism by sending the MESSAGE method, the S-CCF shall provide the
UA role; and
d) when performing S-CCF initiated dialog release the S-CCF shall provide the UA role, even when acting
as a proxy for the remainder of the dialog.
- The MGCF shall provide the UA role, with the exceptions and additional capabilities as described in
subclause 5.5, and with the exceptions and additional capabilities to SDP as described in subclause 6.4.
- The BGCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.6.
- The AS, acting as terminating UA, or redirect server (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.1),
shall provide the UA role, with the exceptions and additional capabilities as described in subclause 5.7.2, and
with the exceptions and additional capabilities to SDP as described in subclause 6.6.
- The AS, acting as originating UA (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.2), shall provide the UA
role, with the exceptions and additional capabilities as described in subclause 5.7.3, and with the exceptions
and additional capabilities to SDP as described in subclause 6.6.
- The AS, acting as a SIP proxy (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.3), shall provided the proxy
role, with the exceptions and additional capabilities as described in subclause 5.7.4.
- The AS, performing 3rd party call control (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.4), shall provide
the UA role, with the exceptions and additional capabilities as described in subclause 5.7.5, and with the
exceptions and additional capabilities to SDP as described in subclause 6.6.
NOTE 1: Subclause 5.7 and its subclauses define only the requirements on the AS that relate to SIP. Other
requirements are defined in 3GPP TS 23.218 [5].
- The AS, receiving third-party registration requests, shall provide the UA role, with the exceptions and
additional capabilities as described in subclause 5.7.
- The MRFC shall provide the UA role, with the exceptions and additional capabilities as described in
subclause 5.8, and with the exceptions and additional capabilities to SDP as described in subclause 6.5.
- The IBCF shall provide the proxy role, with the exceptions and additional capabilities to SIP as described in
subclause 5.10, and with the exceptions and additional capabilities to SDP as described in subclause 6.6. If the
IBCF provides an application level gateway functionality, then the IBCF shall provide the UA role, with the
exceptions and additional capabilities to SIP as described in subclause 5.10, and with the exceptions and
additional capabilities to S
...

Final draft ETSI ES 283 003 V2.5.1 (2008-01)
ETSI Standard

Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
IP Multimedia Call Control Protocol based on
Session Initiation Protocol (SIP) and
Session Description Protocol (SDP) Stage 3
[3GPP TS 24.229 [Release 7], modified]

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2 Final draft ETSI ES 283 003 V2.5.1 (2008-01)



Reference
RES/TISPAN-03120-NGN-R2
Keywords
endorsement, IP, multimedia, profile
ETSI
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Important notice
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© European Telecommunications Standards Institute 2008.
All rights reserved.

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3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI

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3 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
2.1 Normative references.5
Endorsement notice .6
Global modifications to 3GPP TS 24.229 .6
Annex ZA (informative): .118
ZA.1 Void.118
ZA.2 Void.118
ZA.3 Void.118
ZA.4 Void.118
ZA.5 Void.118
ZA.6 Void.118
ZA.7 Void.118
ZA.8 Void.118
ZA.9 Void.118
ZA.9A Void.118
ZA.10 Void.118
ZA.11 Extensions needed in table A.162 of ES 283 003 .119
Annex ZB (informative): Procedures.120
Annex ZC (normative): UUI Header Field .121
ZC.1 Introduction .121
ZC.2 Procedures at the terminating network.121
ZC.3 Extensions needed in table A.4 of ES 283 003 .122
Annex ZD (normative): XML schema for PSTN.123
Annex ZE (informative): Change history.131
History .132

ETSI

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4 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN), and is now submitted for the ETSI standards
Membership Approval Procedure.
ETSI

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Release 7 5 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
1 Scope
The present document provides the ETSI TISPAN endorsement of 3GPP TS 24.229 [1]: "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 7)" in line with the
requirements of TISPAN NGN.
The present document together with the endorsed document provides the necessary SIP/SDP specifications for
supporting TISPAN Release 2 requirements, with the exception of some of the features required for Business Trunking
services (e.g. procedures for handling Wildcarded Public User Identities) and IPTV services (e.g. SDP extensions).
Modifications required in support of these features are expected to be included as essential corrections to the present
document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] 3GPP TS 24.229 (V7.9.0): "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".
[2] ETSI TS 183 008: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Terminating Identification
Presentation (TIP) and Terminating Identification Restriction (TIR); Protocol specification".
[3] ETSI TS 183 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Originating Identification
Presentation (OIP) and Originating Identification Restriction (OIR); Protocol specification".
ETSI

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Release 7 6 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
Endorsement notice
The present document endorses 3GPP TS 24.229 (V7.9.0): "IP Multimedia Call Control Protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 (Release 7)" [1].
The present document shows the modifications, additions and deletions through the use of underlined and strikethrough
text.
For the purpose of the present document clause 1 of [1] applies.
For the purpose of the present document clause 3 of [1] applies except for clause 3.2, which is replaced by the
appropriate clause in clause 3 of the present document.
For the purpose of the present document clause 4 of [1] applies, except for clauses 4.1 and 4.2, which are replaced by
the appropriate clauses in clause 4 of the present document.
For the purpose of the present document clause 5 of [1] applies, except for clauses 5.1.1.1A, 5.1.1.2, 5.1.1.3, 5.1.1.4,
5.1.1.5.1, 5.1.1.5.2, 5.1.1.5A, 5.1.1.6, 5.1.1.7, 5.1.2A.1, 5.1.2.A2, 5.2.1, 5.2.2, 5.2.5.1, 5.2.5.2, 5.2.6.2, 5.2.6.3, 5.2.6.4,
5.2.7.2, 5.2.7.3, 5.2.8.1.1, 5.2.8.1.2, 5.2.8.1.4, 5.2.8.3, 5.2.10.1, 5.2.10.3, 5.4.1.1, 5.4.1.2, 5.4.1.2.1, 5.4.1.3, 5.4.1.4,
5.4.1.6, 5.4.1.7, 5.4.3.2, 5.4.3.3 and 5.10.6, which are replaced by the appropriate clauses in clause 5 of the present
document. In addition clauses 5.1.1.1B, 5.1.1.2A, 5.1.1.4A, 5.1.1.5.1A, 5.1.1.5.1B, 5.1.1.6A, 5.2.2A and 5.4.1.2A.1 are
added.
For the purpose of the present document clause 6 of [1] applies, except for clauses 6.1.1 and 6.2 , which are replaced by
the appropriate clauses in clause 6 of the present document.
For the purpose of the present document clause 7 of [1] applies, except for clause 7.2A.4, which is replaced by the
appropriate clause in clause 7 of the present document.
For the purpose of the present document clause 9 of [1] applies.
For the purpose of the present document annex A of [1] applies, except for clauses A.2.1.2, A.2.1.4.7, A2.1.4.12,
A.2.2.4.7 and A.3.2.1 which are replaced by the appropriate clauses in annex A of the present document.
For the purpose of the present document annex F of [1] is replaced with annex F of the present document.
For the purpose of the present document annex G of [1] is replaced with annex G of the present document.
For the purpose of the present document annex I of [1] applies.
For the purpose of the present document annex J of [1] applies, except for clauses J.1 and J.2 which are replaced by the
appropriate clauses in annex J of the present document. In addition clause J.9A is added.
For the purpose of the present document annex F of [1] applies, except for clauses F.4.1 and F.4.2 which are replaced as
indicated in the appropriate clauses in annex F of the present document.
For the purpose of the present document annex F of [1] applies with the addition of clause F.4A.
Global modifications to 3GPP TS 24.229
The references in clause 2 of [1] should be replaced as shown in table 1.
Table 1
References in 3GPP TS 24.229 [1] Replaced references
[2] 3GPP TS 23.002: "Network architecture". ETSI ES 282 007: "Telecommunications and Internet converged
Services and Protocols for Advanced Networking (TISPAN); IP
Multimedia Subsystem (IMS); Functional architecture" (note 1)
ETSI ES 282 001: "Telecommunications and Internet converged
Services and Protocols for Advanced Networking (TISPAN); NGN
Functional Architecture Release 2" (note 1)
[4A] 3GPP TS 23.107: "Quality of Service (QoS) (note 2)
concept and architecture".
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Release 7 7 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
References in 3GPP TS 24.229 [1] Replaced references
[4B] 3GPP TS 23.167: "IP Multimedia ETSI TS 182 009: “Telecommunications and Internet converged
Subsystem (IMS) emergency session; Stage 2". Services and Protocols for Advanced Networking (TISPAN); NGN
Architecture to support emergency communication from citizen to
authority” (note 1)
[4C] 3GPP TS 23.122: "Non-Access-Stratum (note 2)
(NAS) functions related to Mobile Station (MS)
in idle mode".
[5] 3GPP TS 23.218: "IP Multimedia (IM) (note 2)
Session Handling; IM call model".
[6] 3GPP TS 23.221: "Architectural (note 2)
requirements".
[7] 3GPP TS 23.228: "IP multimedia subsystem; ETSI TS 182 006: "Telecommunications and Internet converged
Stage 2". Services and Protocols for Advanced Networking (TISPAN); IP
Multimedia Subsystem (IMS); Stage 2 description"
[8] 3GPP TS 24.141: "Presence service using ETSI ES 283 030: "Telecommunications and Internet converged
the IP Multimedia (IM) Core Network (CN) Services and Protocols for Advanced Networking (TISPAN);
subsystem; Stage 3". Presence Service Capability; Protocol Specification [3GPP TS 24.141
V7.0.0, modified and OMA-TS-Presence_SIMPLE-V1_0, modified]"
(note 1)
[10] 3GPP TS 26.235: "Packet switched ETSI TS 181 005: "Telecommunications and Internet converged
conversational multimedia applications; Default Services and Protocols for Advanced Networking (TISPAN); Services
codecs". and Capabilities Requirements” (note 1)
[10A] 3GPP TS 27.060: "Mobile Station (MS) (note 2)
supporting Packet Switched Services".
[11A] 3GPP TS 29.162: "Interworking between ETSI TS 183 021: "Telecommunications and Internet converged
the IM CN subsystem and IP networks". Services and Protocols for Advanced Networking (TISPAN); NGN
Release 1; Endorsement of 3GPP TS 29.162 Interworking between
IM CN Sub-system and IP networks" (note 1)
[11B] 3GPP TS 29.163: "Interworking between ETSI ES 283 027: “Telecommunications and Internet converged
the IP Multimedia (IM) Core Network (CN) Services and Protocols for Advanced Networking (TISPAN);
subsystem and Circuit Switched (CS) networks". Endorsement of the SIP-ISUP Interworking between the IP
Multimedia (IM) Core Network (CN) subsystem and Circuit Switched
(CS) networks [3GPP TS 29.163 (Release 7), modified]“ (note 1)
[14] 3GPP TS 29.228: "IP Multimedia (IM) ETSI TS 183 033: "Telecommunications and Internet converged
Subsystem Cx and Dx Interfaces; Signalling Services and Protocols for Advanced Networking (TISPAN); IP
flows and message contents". Multimedia; Diameter based protocol for the interfaces between the
Call Session Control Function and the User Profile Server
Function/Subscription Locator Function; Signalling flows and protocol
details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0,
modified]" (note 1)
[15] 3GPP TS 29.229: "Cx and Dx Interfaces ETSI TS 183 033: "Telecommunications and Internet converged
based on the Diameter protocol, Protocol Services and Protocols for Advanced Networking (TISPAN); IP
details". Multimedia; Diameter based protocol for the interfaces between the
Call Session Control Function and the User Profile Server
Function/Subscription Locator Function; Signalling flows and protocol
details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0,
modified]" (note 1)
[16] 3GPP TS 32.240: "Telecommunication ETSI ES 282 010: "Telecommunications and Internet Converged
management; Charging management; Charging Services and Protocols for Advanced Networking (TISPAN); Charging
architecture and principles". (Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260
Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7
and 3GPP TS 32.299 Release 7 modified)" (note 1)
[17] 3GPP TS 32.260: "Telecommunication ETSI ES 282 010: "Telecommunications and Internet Converged
management; Charging management; IP Services and Protocols for Advanced Networking (TISPAN); Charging
Multimedia Subsystem (IMS) charging". [Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260
Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7
and 3GPP TS 32.299 Release 7modified]" (note 1)
[19] 3GPP TS 33.203: "Access security for IP (note 2)
based services".
[67] draft-rosenberg-sipping-acr-code-00 New reference. Editor's note: The document cannot be formally
(November 2005): "Rejecting Anonymous referenced until it is published as an RFC (note 1)
Requests in the Session Initiation Protocol
(SIP)".
ETSI

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Release 7 8 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
References in 3GPP TS 24.229 [1] Replaced references
[68] draft-jennings-sip-voicemail-uri-05 IETF RFC 4458: "Session Initiation Protocol (SIP) URIs for
(November 2005): "Session Initiation Protocol Applications such as Voicemail and Interactive Voice Response
(SIP) URIs for Applications such as Voicemail (IVR)" (note 1)
and Interactive Voice Response (IVR)".
[85] 3GPP2 C.S0005-D (March 2004): "Upper (note 2)
Layer (Layer 3) Signalling Standard for
cdma2000 Standards for Spread Spectrum
Systems".
[86] 3GPP2 C.S0024-A v1.0 (April 2004): (note 2)
"cdma2000 High Rate Packet Data Air Interface
Standard".
[87] ITU-T Recommendation J.112, (note 2)
"Transmission Systems for Interactive Cable
Television Services"
[88] PacketCable Release 2 Technical Report, (note 2)
PacketCable™ Architecture Framework
Technical Report, PKT-TR-ARCH-FRM.
NOTE 1: The reference in [1] is replaced by the document listed on the right column. This replacement is applicable
to all occurrences of the reference throughout the present endorsement.
NOTE 2: The reference in [1] contains 3GPP or 3GPP2 or cable specific requirements and is not generally applicable
to the present endorsement.

3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, clause 3.1 of [1] applies.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
1xx A status-code in the range 101 through 199, and excluding 100
2xx A status-code in the range 200 through 299
AAA Authentication, Authorization and Accounting
AS Application Server
APN Access Point Name
AUTN Authentication TokeN
B2BUA Back-to-Back User Agent
BGCF Breakout Gateway Control Function
c conditional
BRAS Broadband Remote Access Server
CCF Charging Collection Function
CDF Charging Data Function
CDR Charging Data Record
CK Ciphering Key
CN Core Network
CPC Calling Party Category
CSCF Call Session Control Function
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
DOCSIS Data Over Cable Service Interface Specification
DTD Document Type Definition
EC Emergency Centre
ECF Event Charging Function
E-CSCF Emergency CSCF
FQDN Fully Qualified Domain Name
GCID GPRS Charging Identifier
GGSN Gateway GPRS Support Node
GPRS General Packet Radio Service
GRUU Globally Routable User agent URI
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Release 7 9 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
HPLMN Home PLMN
HSS Home Subscriber Server
i irrelevant
IARI IMS Application Reference Identifier
IBCF Interconnection Border Control Function
I-CSCF Interrogating CSCF
ICID IM CN subsystem Charging Identifier
ICSI IMS Communication Service Identifier
IK Integrity Key
IM IP Multimedia
IMS IP Multimedia core network Subsystem
IMS-ALG IMS Application Level Gateway
IMSI International Mobile Subscriber Identity
IOI Inter Operator Identifier
IP Internet Protocol
IP-CAN IP-Connectivity Access Network
IPsec IP security
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
ISC IP Multimedia Subsystem Service Control
ISIM IM Subscriber Identity Module
IWF Interworking Function
I-WLAN Interworking – WLAN
LRF Location Retrieval Function
m mandatory
MAC Message Authentication Code
MCC Mobile Country Code
MGCF Media Gateway Control Function
MGW Media Gateway
MNC Mobile Network Code
MRFC Multimedia Resource Function Controller
MRFP Multimedia Resource Function Processor
n/a not applicable
NAI Network Access Identifier
NA(P)T Network Address (and Port) Translation
NASS Network Attachement Subsystem
NAT Network Address Translation
o optional
OCF Online Charging Function
PCRF Policy and Charging Rules Function
P-CSCF Proxy CSCF
PDG Packet Data Gateway
PDP Packet Data Protocol
PDU Protocol Data Unit
PIDF-LO Presence Information Data Format Location Object
PLMN Public Land Mobile Network
PSAP Public Safety Answering Point
PSI Public Service Identity
PSTN Public Switched Telephone Network
QoS Quality of Service
RAND RANDom challenge
RES RESponse
RTCP Real-time Transport Control Protocol
RTP Real-time Transport Protocol
S-CCF Serving CSCF
SCTP Stream Control Transmission Protocol
SDP Session Description Protocol
SIP Session Initiation Protocol
SLF Subscription Locator Function
SQN SeQuence Number
UA User Agent
UAC User Agent Client
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Release 7 10 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
UAS User Agent Server
UE User Equipment
UICC Universal Integrated Circuit Card
URI Uniform Resource Identifier
URL Uniform Resource Locator
URN Uniform Resource Name
UDVM Universal Decompressor Virtual Machine
UPSF User Profile Server Function
USIM Universal Subscriber Identity Module
VPLMN Visited PLMN
WLAN Wireless Local Area Network
x prohibited
xDSL Digital Subscriber Line (all types)
XMAC expected MAC
XML eXtensible Markup Language
4 General
4.1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols
SIP defines a number of roles which entities can implement in order to support capabilities. These roles are defined in
annex A.
Each IM CN subsystem functional entity using an interface at the Gm reference point, the Ma reference point, the Mg
reference point, the Mi reference point, the Mj reference point, the Mk reference point, the Mm reference point, the Mr
reference point and the Mw reference point, and also using the IP multimedia Subsystem Service Control (ISC)
Interface, shall implement SIP, as defined by the referenced specifications in annex A, and in accordance with the
constraints and provisions specified in annex A, according to the following roles.
The Gm reference point, the Ma reference point, the Mg reference point, the Mi reference point, the Mj reference point,
the Mk reference point, the Mm reference point, the Mr reference point, the Mw reference point and the ISC reference
point are defined in 3GPP TS 23.002 [2].
- The User Equipment (UE) shall provide the User Agent (UA) role, with the exceptions and additional
capabilities to SIP as described in subclause 5.1, with the exceptions and additional capabilities to SDP as
described in subclause 6.1, and with the exceptions and additional capabilities to SigComp as described in
subclause 8.1. The UE shall also provide the access dependent procedures as described in the annexes,
e.g. GPRS specific procedures described in subclause B.2.2.
- The P-CSCF shall provide the proxy role, with the exceptions and additional capabilities to SIP as described in
subclause 5.2, with the exceptions and additional capabilities to SDP as described in subclause 6.2, and with
the exceptions and additional capabilities to SigComp as described in subclause 8.2. Under certain
circumstances as described in subclause 5.2, the P-CSCF shall provide the UA role with the additional
capabilities, as follows:
a) when acting as a subscriber to or the recipient of event information; and
b) when performing P-CSCF initiated dialog-release, even when acting as a proxy for the remainder of the
dialog.
- The I-CSCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.3.
- The S-CCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.4, and with the exceptions and additional capabilities to SDP as described in subclause 6.3. Under
certain circumstances as described in subclause 5.4, the S-CCF shall provide the UA role with the additional
capabilities, as follows:
a) the S-CCF shall also act as a registrar. When acting as a registrar, or for the purposes of executing a
third-party registration, the S-CCF shall provide the UA role;
b) as the notifier of event information the S-CCF shall provide the UA role;
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Release 7 11 Final draft ETSI ES 283 003 V2.5.1 (2008-01)
c) when providing a messaging mechanism by sending the MESSAGE method, the S-CCF shall provide the
UA role; and
d) when performing S-CCF initiated dialog release the S-CCF shall provide the UA role, even when acting
as a proxy for the remainder of the dialog.
- The MGCF shall provide the UA role, with the exceptions and additional capabilities as described in
subclause 5.5, and with the exceptions and additional capabilities to SDP as described in subclause 6.4.
- The BGCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.6.
- The AS, acting as terminating UA, or redirect server (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.1),
shall provide the UA role, with the exceptions and additional capabilities as described in subclause 5.7.2, and
with the exceptions and additional capabilities to SDP as described in subclause 6.6.
- The AS, acting as originating UA (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.2), shall provide the UA
role, with the exceptions and additional capabilities as described in subclause 5.7.3, and with the exceptions
and additional capabilities to SDP as described in subclause 6.6.
- The AS, acting as a SIP proxy (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.3), shall provided the proxy
role, with the exceptions and additional capabilities as described in subclause 5.7.4.
- The AS, performing 3rd party call control (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.4), shall provide
the UA role, with the exceptions and additional capabilities as described in subclause 5.7.5, and with the
exceptions and additional capabilities to SDP as described in subclause 6.6.
NOTE 1: Subclause 5.7 and its subclauses define only the requirements on the AS that relate to SIP. Other
requirements are defined in 3GPP TS 23.218 [5].
- The AS, receiving third-party registration requests, shall provide the UA role, with the exceptions and
additional capabilities as described in subclause 5.7.
- The MRFC shall provide the UA role, with the exceptions and additional capabilities as described in
subclause 5.8, and with the exceptions and additional capabilities to SDP as described in subclause 6.5.
- The IBCF shall provide the proxy role, with the exceptions and additional capabilities to SIP as described in
subclause 5.10, and with the exceptions and additional
...

SLOVENSKI STANDARD
SIST ES 283 003 V2.5.1:2008
01-julij-2008
=OLWHWHOHNRPXQLNDFLMVNHLQLQWHUQHWQHVWRULWYHWHUSURWRNROL]DQDSUHGQRRPUHåHQMH
7,63$1VWRSQMDSURWRNROD]DNUPLOMHQMH,3YHþSUHGVWDYQRVWQLKNOLFHYQD
SRGODJLSURWRNROD]D]DJRQVHMH6,3LQSURWRNROD]DRSLVVHMH6'3
Telecommunications and Internet converged Services and Protocols for Advanced
Networking (TISPAN) - IP Multimedia Call Control Protocol based on Session Initiation
Protocol (SIP) and Session Description Protocol (SDP) Stage 3
Ta slovenski standard je istoveten z: ES 283 003 Version 2.5.1
ICS:
33.040.01 Telekomunikacijski sistemi Telecommunication systems
na splošno in general
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ES 283 003 V2.5.1:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ES 283 003 V2.5.1:2008

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SIST ES 283 003 V2.5.1:2008

ETSI ES 283 003 V2.5.1 (2008-04)
ETSI Standard

Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
IP Multimedia Call Control Protocol based on
Session Initiation Protocol (SIP) and
Session Description Protocol (SDP) Stage 3
[3GPP TS 24.229 [Release 7], modified]

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SIST ES 283 003 V2.5.1:2008
2 ETSI ES 283 003 V2.5.1 (2008-04)



Reference
RES/TISPAN-03120-NGN-R2
Keywords
endorsement, IP, multimedia, profile
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
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The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2008.
All rights reserved.

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for the benefit of its Members.
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3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI

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SIST ES 283 003 V2.5.1:2008
3 ETSI ES 283 003 V2.5.1 (2008-04)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
2.1 Normative references.5
Endorsement notice .6
Global modifications to 3GPP TS 24.229 .6
Annex ZA (informative): .117
ZA.1 Void.117
ZA.2 Void.117
ZA.3 Void.117
ZA.4 Void.117
ZA.5 Void.117
ZA.6 Void.117
ZA.7 Void.117
ZA.8 Void.117
ZA.9 Void.117
ZA.9A Void.117
ZA.10 Void.117
ZA.11 Extensions needed in table A.162 of ES 283 003 .118
Annex ZB (informative): Procedures.119
Annex ZC (normative): UUI Header Field.120
ZC.1 Introduction .120
ZC.2 Procedures at the terminating network.120
ZC.3 Extensions needed in table A.4 of ES 283 003 .121
Annex ZD (normative): XML schema for PSTN .122
Annex ZE (informative): Change history .130
History .131

ETSI

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SIST ES 283 003 V2.5.1:2008
4 ETSI ES 283 003 V2.5.1 (2008-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
ETSI

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SIST ES 283 003 V2.5.1:2008
5 ETSI ES 283 003 V2.5.1 (2008-04)
1 Scope
The present document provides the ETSI TISPAN endorsement of 3GPP TS 24.229 [1]: "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 7)" in line with the
requirements of TISPAN NGN.
The present document together with the endorsed document provides the necessary SIP/SDP specifications for
supporting TISPAN Release 2 requirements, with the exception of some of the features required for Business Trunking
services (e.g. procedures for handling Wildcarded Public User Identities) and IPTV services (e.g. SDP extensions).
Modifications required in support of these features are expected to be included as essential corrections to the present
document.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] 3GPP TS 24.229 (V7.9.0): "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".
[2] ETSI TS 183 008: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Terminating Identification
Presentation (TIP) and Terminating Identification Restriction (TIR); Protocol specification".
[3] ETSI TS 183 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); PSTN/ISDN simulation services; Originating Identification
Presentation (OIP) and Originating Identification Restriction (OIR); Protocol specification".
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SIST ES 283 003 V2.5.1:2008
6 ETSI ES 283 003 V2.5.1 (2008-04)
Endorsement notice
The present document endorses 3GPP TS 24.229 (V7.9.0): "IP Multimedia Call Control Protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 (Release 7)" [1].
The present document shows the modifications, additions and deletions through the use of underlined and strikethrough
text.
For the purpose of the present document clause 1 of [1] applies.
For the purpose of the present document clause 3 of [1] applies except for clause 3.2, which is replaced by the
appropriate clause in clause 3 of the present document.
For the purpose of the present document clause 4 of [1] applies, except for clauses 4.1 and 4.2, which are replaced by
the appropriate clauses in clause 4 of the present document.
For the purpose of the present document clause 5 of [1] applies, except for clauses 5.1.1.1A, 5.1.1.2, 5.1.1.3, 5.1.1.4,
5.1.1.5.1, 5.1.1.5.2, 5.1.1.5A, 5.1.1.6, 5.1.1.7, 5.1.2A.1, 5.1.2.A2, 5.2.1, 5.2.2, 5.2.5.1, 5.2.5.2, 5.2.6.2, 5.2.6.3, 5.2.6.4,
5.2.7.2, 5.2.7.3, 5.2.8.1.1, 5.2.8.1.2, 5.2.8.1.4, 5.2.8.3, 5.2.10.1, 5.2.10.3, 5.4.1.1, 5.4.1.2, 5.4.1.2.1, 5.4.1.3, 5.4.1.4,
5.4.1.6, 5.4.1.7, 5.4.3.2, 5.4.3.3 and 5.10.6, which are replaced by the appropriate clauses in clause 5 of the present
document. In addition clauses 5.1.1.1B, 5.1.1.2A, 5.1.1.4A, 5.1.1.5.1A, 5.1.1.5.1B, 5.1.1.6A, 5.2.2A and 5.4.1.2A.1 are
added.
For the purpose of the present document clause 6 of [1] applies, except for clauses 6.1.1 and 6.2 , which are replaced by
the appropriate clauses in clause 6 of the present document.
For the purpose of the present document clause 7 of [1] applies, except for clause 7.2A.4, which is replaced by the
appropriate clause in clause 7 of the present document.
For the purpose of the present document clause 9 of [1] applies.
For the purpose of the present document annex A of [1] applies, except for clauses A.2.1.2, A.2.1.4.7, A2.1.4.12,
A.2.2.4.7 and A.3.2.1 which are replaced by the appropriate clauses in annex A of the present document.
For the purpose of the present document annex F of [1] is replaced with annex F of the present document.
For the purpose of the present document annex G of [1] is replaced with annex G of the present document.
For the purpose of the present document annex I of [1] applies.
For the purpose of the present document annex J of [1] applies, except for clauses J.1 and J.2 which are replaced by the
appropriate clauses in annex J of the present document. In addition clause J.9A is added.
For the purpose of the present document annex F of [1] applies, except for clauses F.4.1 and F.4.2 which are replaced as
indicated in the appropriate clauses in annex F of the present document.
For the purpose of the present document annex F of [1] applies with the addition of clause F.4A.
Global modifications to 3GPP TS 24.229
The references in clause 2 of [1] should be replaced as shown in table 1.
Table 1
References in 3GPP TS 24.229 [1] Replaced references
[2] 3GPP TS 23.002: "Network architecture". ETSI ES 282 007: "Telecommunications and Internet converged
Services and Protocols for Advanced Networking (TISPAN); IP
Multimedia Subsystem (IMS); Functional architecture" (note 1)
ETSI ES 282 001: "Telecommunications and Internet converged
Services and Protocols for Advanced Networking (TISPAN); NGN
Functional Architecture Release 2" (note 1)
[4A] 3GPP TS 23.107: "Quality of Service (QoS) (note 2)
concept and architecture".
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SIST ES 283 003 V2.5.1:2008
7 ETSI ES 283 003 V2.5.1 (2008-04)
References in 3GPP TS 24.229 [1] Replaced references
[4B] 3GPP TS 23.167: "IP Multimedia ETSI TS 182 009: “Telecommunications and Internet converged
Subsystem (IMS) emergency session; Stage 2". Services and Protocols for Advanced Networking (TISPAN); NGN
Architecture to support emergency communication from citizen to
authority” (note 1)
[4C] 3GPP TS 23.122: "Non-Access-Stratum (note 2)
(NAS) functions related to Mobile Station (MS)
in idle mode".
[5] 3GPP TS 23.218: "IP Multimedia (IM) (note 2)
Session Handling; IM call model".
[6] 3GPP TS 23.221: "Architectural (note 2)
requirements".
[7] 3GPP TS 23.228: "IP multimedia subsystem; ETSI TS 182 006: "Telecommunications and Internet converged
Stage 2". Services and Protocols for Advanced Networking (TISPAN); IP
Multimedia Subsystem (IMS); Stage 2 description"
[8] 3GPP TS 24.141: "Presence service using ETSI ES 283 030: "Telecommunications and Internet converged
the IP Multimedia (IM) Core Network (CN) Services and Protocols for Advanced Networking (TISPAN);
subsystem; Stage 3". Presence Service Capability; Protocol Specification [3GPP TS 24.141
V7.0.0, modified and OMA-TS-Presence_SIMPLE-V1_0, modified]"
(note 1)
[10] 3GPP TS 26.235: "Packet switched ETSI TS 181 005: "Telecommunications and Internet converged
conversational multimedia applications; Default Services and Protocols for Advanced Networking (TISPAN); Services
codecs". and Capabilities Requirements” (note 1)
[10A] 3GPP TS 27.060: "Mobile Station (MS) (note 2)
supporting Packet Switched Services".
[11A] 3GPP TS 29.162: "Interworking between ETSI TS 183 021: "Telecommunications and Internet converged
the IM CN subsystem and IP networks". Services and Protocols for Advanced Networking (TISPAN); NGN
Release 1; Endorsement of 3GPP TS 29.162 Interworking between
IM CN Sub-system and IP networks" (note 1)
[11B] 3GPP TS 29.163: "Interworking between ETSI ES 283 027: “Telecommunications and Internet converged
the IP Multimedia (IM) Core Network (CN) Services and Protocols for Advanced Networking (TISPAN);
subsystem and Circuit Switched (CS) networks". Endorsement of the SIP-ISUP Interworking between the IP
Multimedia (IM) Core Network (CN) subsystem and Circuit Switched
(CS) networks [3GPP TS 29.163 (Release 7), modified]“ (note 1)
[14] 3GPP TS 29.228: "IP Multimedia (IM) ETSI TS 183 033: "Telecommunications and Internet converged
Subsystem Cx and Dx Interfaces; Signalling Services and Protocols for Advanced Networking (TISPAN); IP
flows and message contents". Multimedia; Diameter based protocol for the interfaces between the
Call Session Control Function and the User Profile Server
Function/Subscription Locator Function; Signalling flows and protocol
details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0,
modified]" (note 1)
[15] 3GPP TS 29.229: "Cx and Dx Interfaces ETSI TS 183 033: "Telecommunications and Internet converged
based on the Diameter protocol, Protocol Services and Protocols for Advanced Networking (TISPAN); IP
details". Multimedia; Diameter based protocol for the interfaces between the
Call Session Control Function and the User Profile Server
Function/Subscription Locator Function; Signalling flows and protocol
details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0,
modified]" (note 1)
[16] 3GPP TS 32.240: "Telecommunication ETSI ES 282 010: "Telecommunications and Internet Converged
management; Charging management; Charging Services and Protocols for Advanced Networking (TISPAN); Charging
architecture and principles". (Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260
Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7
and 3GPP TS 32.299 Release 7 modified)" (note 1)
[17] 3GPP TS 32.260: "Telecommunication ETSI ES 282 010: "Telecommunications and Internet Converged
management; Charging management; IP Services and Protocols for Advanced Networking (TISPAN); Charging
Multimedia Subsystem (IMS) charging". [Endorsement of 3GPP TS 32.240 Release 7, 3GPP TS 32.260
Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7
and 3GPP TS 32.299 Release 7modified]" (note 1)
[19] 3GPP TS 33.203: "Access security for IP (note 2)
based services".
[67] draft-rosenberg-sipping-acr-code-00 New reference. Editor's note: The document cannot be formally
(November 2005): "Rejecting Anonymous referenced until it is published as an RFC (note 1)
Requests in the Session Initiation Protocol
(SIP)".
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SIST ES 283 003 V2.5.1:2008
8 ETSI ES 283 003 V2.5.1 (2008-04)
References in 3GPP TS 24.229 [1] Replaced references
[68] draft-jennings-sip-voicemail-uri-05 IETF RFC 4458: "Session Initiation Protocol (SIP) URIs for
(November 2005): "Session Initiation Protocol Applications such as Voicemail and Interactive Voice Response
(SIP) URIs for Applications such as Voicemail (IVR)" (note 1)
and Interactive Voice Response (IVR)".
[85] 3GPP2 C.S0005-D (March 2004): "Upper (note 2)
Layer (Layer 3) Signalling Standard for
cdma2000 Standards for Spread Spectrum
Systems".
[86] 3GPP2 C.S0024-A v1.0 (April 2004): (note 2)
"cdma2000 High Rate Packet Data Air Interface
Standard".
[87] ITU-T Recommendation J.112, (note 2)
"Transmission Systems for Interactive Cable
Television Services"
[88] PacketCable Release 2 Technical Report, (note 2)
PacketCable™ Architecture Framework
Technical Report, PKT-TR-ARCH-FRM.
NOTE 1: The reference in [1] is replaced by the document listed on the right column. This replacement is applicable
to all occurrences of the reference throughout the present endorsement.
NOTE 2: The reference in [1] contains 3GPP or 3GPP2 or cable specific requirements and is not generally applicable
to the present endorsement.

3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, clause 3.1 of [1] applies.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
1xx A status-code in the range 101 through 199, and excluding 100
2xx A status-code in the range 200 through 299
AAA Authentication, Authorization and Accounting
AS Application Server
APN Access Point Name
AUTN Authentication TokeN
B2BUA Back-to-Back User Agent
BGCF Breakout Gateway Control Function
c conditional
BRAS Broadband Remote Access Server
CCF Charging Collection Function
CDF Charging Data Function
CDR Charging Data Record
CK Ciphering Key
CN Core Network
CPC Calling Party Category
CSCF Call Session Control Function
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
DOCSIS Data Over Cable Service Interface Specification
DTD Document Type Definition
EC Emergency Centre
ECF Event Charging Function
E-CSCF Emergency CSCF
FQDN Fully Qualified Domain Name
GCID GPRS Charging Identifier
GGSN Gateway GPRS Support Node
GPRS General Packet Radio Service
GRUU Globally Routable User agent URI
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SIST ES 283 003 V2.5.1:2008
9 ETSI ES 283 003 V2.5.1 (2008-04)
HPLMN Home PLMN
HSS Home Subscriber Server
i irrelevant
IARI IMS Application Reference Identifier
IBCF Interconnection Border Control Function
I-CSCF Interrogating CSCF
ICID IM CN subsystem Charging Identifier
ICSI IMS Communication Service Identifier
IK Integrity Key
IM IP Multimedia
IMS IP Multimedia core network Subsystem
IMS-ALG IMS Application Level Gateway
IMSI International Mobile Subscriber Identity
IOI Inter Operator Identifier
IP Internet Protocol
IP-CAN IP-Connectivity Access Network
IPsec IP security
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
ISC IP Multimedia Subsystem Service Control
ISIM IM Subscriber Identity Module
IWF Interworking Function
I-WLAN Interworking – WLAN
LRF Location Retrieval Function
m mandatory
MAC Message Authentication Code
MCC Mobile Country Code
MGCF Media Gateway Control Function
MGW Media Gateway
MNC Mobile Network Code
MRFC Multimedia Resource Function Controller
MRFP Multimedia Resource Function Processor
n/a not applicable
NAI Network Access Identifier
NA(P)T Network Address (and Port) Translation
NASS Network Attachement Subsystem
NAT Network Address Translation
o optional
OCF Online Charging Function
PCRF Policy and Charging Rules Function
P-CSCF Proxy CSCF
PDG Packet Data Gateway
PDP Packet Data Protocol
PDU Protocol Data Unit
PIDF-LO Presence Information Data Format Location Object
PLMN Public Land Mobile Network
PSAP Public Safety Answering Point
PSI Public Service Identity
PSTN Public Switched Telephone Network
QoS Quality of Service
RAND RANDom challenge
RES RESponse
RTCP Real-time Transport Control Protocol
RTP Real-time Transport Protocol
S-CCF Serving CSCF
SCTP Stream Control Transmission Protocol
SDP Session Description Protocol
SIP Session Initiation Protocol
SLF Subscription Locator Function
SQN SeQuence Number
UA User Agent
UAC User Agent Client
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SIST ES 283 003 V2.5.1:2008
10 ETSI ES 283 003 V2.5.1 (2008-04)
UAS User Agent Server
UE User Equipment
UICC Universal Integrated Circuit Card
URI Uniform Resource Identifier
URL Uniform Resource Locator
URN Uniform Resource Name
UDVM Universal Decompressor Virtual Machine
UPSF User Profile Server Function
USIM Universal Subscriber Identity Module
VPLMN Visited PLMN
WLAN Wireless Local Area Network
x prohibited
xDSL Digital Subscriber Line (all types)
XMAC expected MAC
XML eXtensible Markup Language
4 General
4.1 Conformance of IM CN subsystem entities to SIP, SDP and other protocols
SIP defines a number of roles which entities can implement in order to support capabilities. These roles are defined in
annex A.
Each IM CN subsystem functional entity using an interface at the Gm reference point, the Ma reference point, the Mg
reference point, the Mi reference point, the Mj reference point, the Mk reference point, the Mm reference point, the Mr
reference point and the Mw reference point, and also using the IP multimedia Subsystem Service Control (ISC)
Interface, shall implement SIP, as defined by the referenced specifications in annex A, and in accordance with the
constraints and provisions specified in annex A, according to the following roles.
The Gm reference point, the Ma reference point, the Mg reference point, the Mi reference point, the Mj reference point,
the Mk reference point, the Mm reference point, the Mr reference point, the Mw reference point and the ISC reference
point are defined in 3GPP TS 23.002 [2].
- The User Equipment (UE) shall provide the User Agent (UA) role, with the exceptions and additional
capabilities to SIP as described in subclause 5.1, with the exceptions and additional capabilities to SDP as
described in subclause 6.1, and with the exceptions and additional capabilities to SigComp as described in
subclause 8.1. The UE shall also provide the access dependent procedures as described in the annexes,
e.g. GPRS specific procedures described in subclause B.2.2.
- The P-CSCF shall provide the proxy role, with the exceptions and additional capabilities to SIP as described in
subclause 5.2, with the exceptions and additional capabilities to SDP as described in subclause 6.2, and with
the exceptions and additional capabilities to SigComp as described in subclause 8.2. Under certain
circumstances as described in subclause 5.2, the P-CSCF shall provide the UA role with the additional
capabilities, as follows:
a) when acting as a subscriber to or the recipient of event information; and
b) when performing P-CSCF initiated dialog-release, even when acting as a proxy for the remainder of the
dialog.
- The I-CSCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.3.
- The S-CCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.4, and with the exceptions and additional capabilities to SDP as described in subclause 6.3. Under
certain circumstances as described in subclause 5.4, the S-CCF shall provide the UA role with the additional
capabilities, as follows:
a) the S-CCF shall also act as a registrar. When acting as a registrar, or for the purposes of executing a
third-party registration, the S-CCF shall provide the UA role;
b) as the notifier of event information the S-CCF shall provide the UA role;
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SIST ES 283 003 V2.5.1:2008
11 ETSI ES 283 003 V2.5.1 (2008-04)
c) when providing a messaging mechanism by sending the MESSAGE method, the S-CCF shall provide the
UA role; and
d) when performing S-CCF initiated dialog release the S-CCF shall provide the UA role, even when acting
as a proxy for the remainder of the dialog.
- The MGCF shall provide the UA role, with the exceptions and additional capabilities as described in
subclause 5.5, and with the exceptions and additional capabilities to SDP as described in subclause 6.4.
- The BGCF shall provide the proxy role, with the exceptions and additional capabilities as described in
subclause 5.6.
- The AS, acting as terminating UA, or redirect server (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.1),
shall provide the UA role, with the exceptions and additional capabilities as described in subclause 5.7.2, and
with the exceptions and additional capabilities to SDP as described in subclause 6.6.
- The AS, acting as originating UA (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.2), shall provide the UA
role, with the exceptions and additional capabilities as described in subclause 5.7.3, and with the exceptions
and additional capabilities to SDP as described in subclause 6.6.
- The AS, acting as a SIP proxy (as defined in 3GPP TS 23.218 [5] subclause 9.1.1.3), shall
...