Report on ETSI activities: 1) NGN in ETSI 2) Interconnection of Services

1
Report on ETSI activities1) NGN in ETSI2)
Interconnection of Services
DOCUMENT GSC13-GTSC6-02r2
FOR Presentation
SOURCE ETSI
AGENDA ITEM 4.1
CONTACT(S) ian.spiers_at_googlemail.com Rainer.Muench_at_alcatel-lucent.com fernando_at_soriano.mobi claudio.gentile_at_telecomitalia.it dominique.roche_at_orange-ftgroup.com david.boswarthick_at_etsi.org
Presenter Ian Spiers
Submission DateJuly 13, 2008
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NGN in TISPANCommon IMS in 3GPP
1) NGN in ETSI

• Source Rainer Muench, TISPAN Chairman

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1) TISPAN is the home of NGN standards

• TISPAN is the ETSI body that
• specifies standards for Fixed networks and
  internet convergence
• developed the Convergence work Item (FMC)
• specifies the Next Generation of Networks
• Many of the participating organisations have
  their HQs from outside of Europe
• TISPAN NGN specifications are referenced by the
  ITU-T
• Common IMS parts of the TISPAN work are
  considered in 3GPP specifications as published by
  ETSI or other OPs
• Open area http//portal.etsi.org/docbox/TISPAN/Op
  en 
• TISPAN NGN specifications can be considered as
  THE global NGN solution

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TISPAN is today

• An important standards group (and a great one)
• Typically up to 160 participants per meeting
• International participation (Europe, Asia,
  Americas)
• Up to 800 documents to treat in 7 WGs during one
  week
• 4 plenaries, 4-6 WG meetings, 4-8 ad hocs per year

TISPAN IS GOOD
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TISPAN Organisation

• 7 Working Groups
• Requirements and Architecture
• Protocols
• Numbering, Naming, Addressing, Routeing
• Home Networks
• Testing and Validation
• Security
• Network Management
• Hierarchical system for organising and managing
  the work
• Oversee activity per topic
• Collocated Technical Committee Plenaries and full
  WG meetings (4 times a year)
• Interim meetings as required and agreed
  (face-to-face or virtual)
• Close co-operation with other SDOs, ITU-T, 3GPP,
  corporate networks (e.g. Ecma), many fora and
  groups

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ETSI NGN Status

• Release 1 .. Status Complete
• Release 2 .. Nearing completion
• Release 3 Requirement capture and early work
  progressing
• Transfer of Work Items for Common IMS
• All Common IMS related WIs have been transferred
  to 3GPP, TISPAN monitor progress carefully and
  take appropriate action if specific problems are
  identified.

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Some key work areas in NGN R2

• Resource control (RACS)
• Network attachment subsystem (NASS)
• Supplementary services
• PSTN/ISDN Emulation (PES)
• IPTV
• TS 183 063 on IMS IPTV Stage 3 Core network
  aspects has been published.
• TS 183 064 on IPTV dedicated system Stage 3 has
  been approved at TISPAN18 Plenary (03 04 July
  2008).
• Numbering, naming, addressing, routeing
• Home networks and devices
• Corporate networks and business communication

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ETSI TISPAN NGN Release 3

• Early requirements for the next TISPAN Release
  include
• VoIP Consolidation (including QoS, security,
  interworking)
• IPTV Service evolution (blended services and
  beyond)
• Consolidation of the work on business
  communication
• Ultra Broadband (fixed and wireless) access to
  the NGN
• Work progressing on Non-3GPP access systems
• Improvements to Release 2, e.g. resource control
• Interconnection (NGN, NGCN)
• Network Harmonisation - increase interoperability
  with other NGNs and other networks (non IMS).

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Numbering, Naming and Addressing

• TISPAN WG4 have investigated the need to
  introduce a Naming Address Resolution (NAR)
  framework into TISPAN NGN conformant
  communication networks
• The following approach was adopted
• Investigation of use cases in the NGN
  environment to determine required NAR functions
• Gap Analysis of current TISPAN NGNs
  specifications - comparing them to
  existing/emerging solutions of NAR methods.
• Identification of items requiring further
  standardization based on the above analysis
• Analysis of the consequences of creating a Naming
  Address Resolution framework.

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NGN Interconnection

• TISPAN is currently working on ENUM DNS
  Guidelines that will enable TISPAN to evaluate
  their requirements against what is set out within
  the GSMA documents IR34 and IR37.
• That exercise will provide a firm basis for
  TISPAN examine their requirements for an
  Inter-operator IP backbone network and discuss
  the possibility of a common approach with the
  GSMA, or alternatively conclude why this isn't
  the case.
• ETSI to
• Complete work on ENUM DNS Guidelines, NGN
  evolution for interconnection, inter-domain and
  access reference points, numbering, naming,
  addressing, routeing and Naming Address
  Resolution functionality
• Identify any critical outstanding issues and
  propose a way forward, e.g. the need to develop
  further commercial and administrative
  arrangements required to facilitate the
  realisation of an IPX responding to TISPAN
  requirements
• Compare detailed requirements and guidelines
  against other planned approaches e.g. GSMA
• Consider the likelihood of achieving a viable
  large scale global approach for common IMS
  providers
• ETSI is supporting the view that all required
  parties need to move forward in a coordinated
  manner.
• ETSI is supporting collaboration with 3GPP, GSMA,
  SDOs, ITU-T.

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TISPAN NGN R2 security

• NGN Security requirements (TS 187 001)
• Defines also security requirements for IPTV,
  Business Communication, Media Security, Home
  Networking, and for countering UC
• NGN eTVRA (TR 187 002)
• Threat and risk analyses for specific NGN use
  cases such as NAT traversal, RACS, Media
  Security, and Unsolicited Communication
• NGN Security architecture (TS 187 003)
• Defining the security architecture for IPTV, Home
  Networking, FMC, Media Security, H.248, Corporate
  Networks
• Generalised NAT traversal feasibility study (TR
  187 008)
• Media security (TR 187 007)
• Impact of unsolicited communication in the NGN
  (TR 187 009)
• NGN Lawful Interception functional entities,
  information flow and reference points (TS 187
  005)
• Data retention and its impact on the NGN (TR 187
  012)

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Early TISPAN NGN R3 security

• Feasibility study on IPTV security architecture
• Study models and key management systems for
  service protection
• aim to develop the model for the NGN.
• Study of functional entities and mechanisms for
  service protection with the
• aim to define these for the NGN.
• Study of a framework open to the integration of
  content protection solutions.
• Feasibility study of security mechanisms for
  customer premises networks connected to TISPAN
  NGN.

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Topics for future security work

• IPTV security (enhancement of stage 2, definition
  of stage 3)
• Adding Prevention of Unsolicited Communication as
  a feature (stage 1, stage 2, stage 3)
• Identity protection, authentication and integrity
  countermeasures and to define credential
  management
• Media security provisioning (stage 1, stage2)
• Additional work on NAT-T (e.g. interaction with
  RACS, interaction with IPTV, security analysis of
  use of STUN)
• Enhanced security for NASS, RACS
• Security for CNG/CND (stage 1, stage 2, stage 3)
• Implications for AGCF security
• Security for NGCN
• FMC (taking into account requirements of the
  FMCA)
• Diameter and Radius AVP profiling
• Application layer security on the NGN (e.g. TELCO
  2.0)
• Analyse the inter-relation between security
  features and architecture of the NGN (IPTV,
  NAT-T, NASS, RACS etc.) in terms of how to employ
  consistent security architecture and mechanisms
• Develop general rules, patterns, and templates to
  ease the employment of the NGN in practice and to
  facilitate risk control

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Network Management

• NGN Management
• Resource Management (IMS Management imported from
  3GPP)
• Subscription Management (SuM)
• IPTV Management
• JointSuM
• collaboration between ETSI TISPAN WG8, 3GPP SA5,
  and TM Forum TIP, working on alignment of the
  Subscription Management and Service Activation
  specifications in these bodies. Recently, also
  ITU-T SG 4 has indicated their interest in this
  work.
• Collaboration
• TM Forum and other de facto bodies are important
  players in the global telecom management
  standards arena. Their work is being taken into
  account in TISPAN WG8.

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Testing Activities

• Production of manual and automatic test suites to
  ensure the conformance to TISPAN, 3GPP and ITU
  standardised protocols.
• These tests ensure
• the global interoperability for and between ISDN
  and TISPAN NGN Releases incl. PSTN/ISDN Emulation
  Subsystem,
• QoS between networks,
• performance benchmarking for NGN
• Co-operation with
• 3GPP
• ITU (SG 11, SG 12)

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Next Steps (in Standards)

• As NGN networks are being rolled out and tested,
  TISPAN is seeing a large increase in the number
  of corrections (CRs) to NGN-R1 and R2. This is a
  good sign.
• TISPAN (and ETSI) recognises the importance of
  cooperation agreements and is identifying key
  bodies and works together to avoid duplication of
  effort.
• TISPANs members are now focused on Rel-2
  completion and progressing new work areas for
  Rel-3.
• Push ahead with e.g. the Interconnection work,
  IPTV, home networks, next generation corporate
  networks, next generation access technologies.

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Other PSOs/Challenges

• Noted that the work on NGN protocols in ITU-T SG
  11 is progressing well.
• It is noted that caution should be taken to
  ensure that work is not duplicated in PSOs. In
  general, cooperation with other PSOs is working
  well.
• As new features and services are introduced using
  NGNs, more and more divers players are active on
  the playing field (e.g. NGN IPTV-Content
  suppliers-broadcaster etc). This has to be
  coordinated!

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NGN Interconnection of Services ETSI Board
Strategic Topic
2) NGN Interconnection of Services

• Source
• Fernando Soriano
• Claudio Gentile

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Introduction

• Within the topic of Service level
  Interconnection of NGN Services ETSI
• Intends to give a step forward and to highlight
  the importance of interconnection at the service
  level for Next Generation Network
• Shows its determination to take the required
  steps to lead the creation of the interconnection
  standard
• and wiliness to bring all parties together to
  collaborate in its realization
• ETSI identified three main areas of work
• Need of Global Standard that covers IP
  interconnection of NGN services.
• Avoiding divergent implementations
• And assuring the global interconnection of NGN
• NGN Interconnection of Services was approved as a
  strategic topic for 2008 by the General Assembly
  in November 2007

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Rationale

• ETSI goal is the re-assure the elaboration of a
  global Standard for Interconnection of NGN
  Services.
• Today interconnection of IP is optimized for
  Internet.
• Interconnection of NGN services must take in
  consideration Telco requirements
• QoS across the whole chain
• Payments, according to principles of initiating
  party pays (or others), premium numbers,
• Reduce complexity of interconnection among
  operators (and, potentially, thousands of
  players) to achievable targets
• And this Interconnection has to be achieved at a
  global scale
• Interconnection of NGN affects to a multiple
  players and organizations, and differences in
  their approaches may lead to duplication and
  divergence
• Out of Scope Commercial relation itself across
  the chain of IMS

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GAP Analysis

• How identified requirements (business oriented)
  fit with current standardization work on
  interconnection?
• Are well covered all aspects?
• Are there overlapping among the work in technical
  organizations?
• Initial study done by TE and TI
• Taking as reference the IPX model developed in
  the GSMA
• And the work under progress in 3GPP and ETSI
  TISPAN
• Analyzing aspects related to
• Architectural models, network interfaces,
• QoS values defined across the IP chain (access,
  carrier, peering point, codecs,..), including KPI
  measurement,
• Security Define and manage different security
  levels and profiles
• Consideration the intermediate figure of the
  carrier/hub
• CDR specification and production within the
  technical infrastructure for settlements among
  participants
• Testing to certify interconnection.
• Etc.
• Shows that technical work may need to be
  reviewed, prioritized and better synchronized.

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GAP Analysis Requirements
GSMA IPX Requirements 3GPP Rel-8 3GPP Rel-9
Inter-Service Provider IP Backbone Requirements Addressing and routing QoS, Authentication and Authorization, Accounting Service Awareness NNI interface enabling direct service interconnection. In Rel-8 no requirements for an IP backbone have been defined. Specification of intermediate backbone must be considered
Security Public Internet, Integrity. Tunnelling, Traffic splitting (UE/SERVER) Requirements not defined in SA1. Network domain security is defined by SA3 (TS 33.210) Should be defined in Rel9
Charging Specification Requirement specified in SA1. Offline charging specified in SA5. Should be enhanced in Rel9
Addressing and Routing Requirements partially defined in SA1 Should be enhanced in Rel9
Service Awareness Requirement partially specified in SA1 Should be enhanced in Rel9 new scenarios.
Transcoding and Media Protocol Conversion Requirement specified in SA1 Should be adopted in Rel-9 new scenarios.
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GAP Analysis Architectures
GSMA 3GPP TISPAN
Direct or Indirect Interconnection (Service/Transport Level) Direct Connection (Rel8) (between CS, IMS cores, not ISP/ASPs) Rel 9 (SA1 starting TR) will cover also indirect interconnection scenarios. Service Interconnection SoIX architecture and use case scenarios defined for both direct and indirect interconnection. Note that IMS Direct Interconnection was tasked to 3GPP (II-NNI) Proposal of a TISPAN IPX.
E2E QoS is a must in IPX. Use of Internet discouraged. E2E QoS relies simply on overprovisioning and marking of User Plane IP packets (using DiffServ). Both Internet and e2e QoS based models (inter-RACS signaling is under definition) TISPAN IPX includes carrier grade service interconnection
Mainly targeted to GPRS or I-WLAN roaming and interworking of data services. Direct Interconnection for both IP services or legacy PSTN/PLMN multimedia serv. Interconnection for IP services or legacy PSTN/PLMN.
Numerous requirements over IPX Proxy. No technical definition for IPX proxy No technical definition for IPX proxy.
Some requirements over operator Border Nodes (screening, firewall, GRE tunnels) Border Nodes IBCF TrGW not fully defined. No Ix interface defined. No firewall/QoS control. No GRE support. Border Nodes IBCF RACS IBGF highly defined. Gq interface QoS/NAT/Firewall control. No support for GRE tunnels.
Interconnection Interfaces (NNI) Radius, MMS, IMS IMS-NNI (Ici/Izi) under specification SIP-I NNI only starting. NNI Definition ongoing (TR only) either IMS, SIP-I or BICC/IP
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NGN Interconnection Workshop9 June 2008 -
Discussion

• Importance of IP interconnection growing at all
  levels
• NGN operators, International Carriers, etc.
• Regulators
• Vendors
• Presentations from the various organizations
  provided snapshots of activities
• GSMA IPX model presented as major piece of
  requirements
• IPI Alliance and i3 Forum recently established
  may provide additional requirements
• 3GPP Rel 8 to cover
• IMS to IMS NNI for direct interconnection
• CS to CS based on SIP-I
• More complex scenarios including eg use of IPX
  service/network to be addressed in rel 9
• Discussion on the need to look at interconnection
  of IMS to generic (basic) SIP
• Roaming support presentation from NTT DoCoMo.
  More activity to be done as it is expected to
  influence the evolution of interconnection
• Presentation from TE and TI provided initial
  review of the gaps between the GSMA business
  requirements/models and the standards
• Interoperability testing (eg in ETSI INT) will
  have increasing importance once the standards are
  finalized

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NGN Interconnection Workshop9 June 2008 - Output

• Leverage TISPAN experience in this area to cover
  NGN requirements, not losing the expertise of
  this and other organizations
• Need to be aware of developments also in other
  organizations including ITU and the regional SDOs
  partners of 3GPP and share ETSI findings also in
  GSC
• It is proposed to develop a high level roadmap
  showing the programs of each organization and the
  critical relationships over time. This should
  possibly present the timescale relevant to the
  major requirements
• What is the next step? Focus down on a specific
  case, on a service level NNI, which is critical
  to be put in place, to be standardized, and
  discuss that in detail as a next step
• It was proposed to establish a mailing list to
  progress the discussion
• Do not lose the momentum, dont stop ongoing
  activities while looking at future improvement
• It was supported the importance of seeking a
  coherent and coordinated set of standards with
  global value

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What next

• Establish the foundations for interconnection of
  the new generation of IMS services beyond
  frontiers
• Technical standard for NGN interconnection of
  services must be timely available for NGN,
  coordinated with Common IMS, and IMS services
  that will be standardize by 3GPP, SDOs, OMA and
  other organizations
• Next work requires to continue in the coordinated
  way initiated in Workshop
• Technical bodies will continue contribution
  driven from their participants according with
  their normal procedures
• Synchronization through liaisons may have to be
  reinforce by mixed working groups, follow up
  sessions or whatever may be decided

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ETSI Please visit http//www.ETSI.org or contact
helpdesk_at_etsi.org
TISPAN Please visit http//www.TISPAN.org or
contact TISPANsupport_at_etsi.org Open area
http//portal.etsi.org/docbox/TISPAN/Open  
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TISPAN Supplementary Slides
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An Example of the Hierarchical System for
Organising and Managing the Work
IPv6 Testing Level 1
IPv6 Core WI Level 2
IPv6 Mobility WI Level 2
IPv6 to IPv4 WI Level 2
IPv6 Security WI Level 2
RequirementsCatalogueWI Level 3
Interoperability WI Level 3
Conformance WI Level 3
TSS TP WI Level 4
Test Suite WI Level 4
Core Catalogue Deliverable
Core TSS TP Deliverable
Core TTCN-3 ATS Deliverable
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NGN Feasibility Studies Feed into TISPAN Core
Security Documents
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List of TISPAN Rel-2 deliverables (1/8)
Rel-2 Overall Description  
Release 2 definition 180 002
Service and Capability Requirements 181 005
NGN Functional Architecture 282 001
IMS General Evolution  
IMS Functional architecture 282 007
IMS Stage 2 description 182 006
IMS Call Control Protocol based on SIP and SDP Stage 33GPP TS 24.229 Rel-7 modified 283 003
H.248 Profile for controlling MRFP in the IMS Protocol specification 3GPP TS 29.333 Rel-7 modified 183 031
Common Basic Communication procedures Protocol specification 183 028
Requirements for a NGN Session Control Protocol and analysis of the IMS SIP profile meets these requirements 282 016
Interworking between IMS and IP networks (Endorsement of 3GPP TS 29.162) 183 021
Diameter-based protocol between CSCF and UPSF/SLF Signalling flows and protocol details 3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0, modified 183 033
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List of TISPAN Rel-2 deliverables (2/8)
IMS Supplementary Services (ISS)  
Advice of Charge (AoC)  
Advice Of Charge (AOC) Stage 3 183 047
Call Completion on Busy Subscriber (CCBS), Call Completion No Reply (CCNR)  
CCBS, CCNR Stage 3 183 042
Call Waiting (CW)  
CW Stage 3 183 015
SMS over NGN IMS  
Overview of Messaging Services 181 007
Support of SMS over NGN IMS Stage 2 182 021
Support of SMS and MMS over NGN IMS subsystem Stage 3Endorsement of 3GPP TS 24.341 Release 7 183 051
Messaging service using the IMS Stage 3 Protocol specifications Endorsement of 3GPP TS 24.247 Release 6 183 041
Direct Communication (DC) Service  
DC Service Description Endorsement of OMA-ERELD-PoC-V1 181 006
DC Architecture and functional description Endorsement of OMA-AD-PoC-V1 182 017
DC SIP Protocol Specification (OMA-TS-POC_ControlPlane-V1, modified and OMA-TS-PoC_UserPlane-V1, modified and OMA-TS-PoC_XDM-V1, modified) 183 045
Customized Originating and Terminating Multimedia Information Presentation (COMIP/CTMIP) and Customized Originating and Terminating Multimedia Information Filtering (COMIF/CTMIF)  
COMIP/CTMIP and COMIF/CTMIF Requirements Analysis 181 015
Presence Service (Presence)  
Presence Architecture and functional description 182 008
Presence Architecture and functional description 283 030
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List of TISPAN Rel-2 deliverables (3/8)
PSTN/ISDN Simulation Subsystem (PSS)  
Closed User Group (CUG) Protocol specification  183 054
PSS Communication Diversion (CDIV) Protocol specification 183 004
PSS Conference (CONF) Protocol specification 183 005
PSS Malicious Communication Identification (MCID) Protocol specification 183 016
PSS Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR) Protocol specification 183 008
PSS Explicit Communication Transfer (ECT) Protocol specification 183 029
PSS Multimedia Telephony (MMTel) Stage 1 181 002
PSS Voice Call Continuity (VCC) Stage 2 182 007
PSS XML Configuration Access Protocol (XCAP) over the Ut interface 183 023
PSS Message Waiting Indication (MWI) Protocol specification 183 006
PSS Communication HOLD (HOLD) Protocol specification 183 010
PSS Anonymous Communication Rejection (ACR) and Communication Barring (CB) 183 011
PSS Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) 183 007
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List of TISPAN Rel-2 deliverables (4/8)
IP Television (IPTV)  
Requirements for network transport capabilities to support IPTV services 181 014
Service Layer Requirements to integrate NGN services and IPTV 181 016
IP TV Architecture  
Dedicated subsystem for IPTV functions 182 028
IPTV functions supported by the IMS 182 027
IMS-based IPTV stage 3 specification 183 063
Dedicated IPTV subsystem stage 3 specification 183 064
Fixed Mobile Convergence (FMC)  
FMC Requirements analysis 181 011
Corporate Network  
Business Communication Requirements 181 019
Core and Enterprise NGN Interaction Scenarios and Architectural Requirements 182 023
Hosted Enterprise Services Architecture and functional description 182 024
Business Trunking Architecture and functional description 182 025
Customer Network Gateway (CNG)  
Services requirements and capabilities for customer networks connected to TISPAN NGN 185 005
CNG Architecture and Reference Points 185 003
High level customer network architectures 185 004
Customer Devices architecture and interfaces and Reference Points 185 006
Analysis of protocols for customer networks connected to TISPAN NGN 185 007
Analysis of security mechanisms for customer networks connected to TISPAN NGN R2 185 008
Architecture and reference points of customer network devices for IPTV services 185 009
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List of TISPAN Rel-2 deliverables (5/8)
Interconnection and Numbering Rel-2  
Interconnect issues related to Numbering Naming and Addressing (NAR) 184 006
Naming/Numbering Address Resolution (NAR) 184 007
Register of assigned protocol numbers and names 183 050
Incorporating Universal Communications Identifier (UCI) support into the specification of Next Generation Networks (NGN) 284 004
Accounting and Charging Rel-2  
Charging management Endorsement of 3GPP Rel-7 TS 32.240, 32.260, 32.297, 32.298 and 32.299 (modified) 282 010
SIP Transfer of IMS Service Tariff Information Protocol specification 183 058
PSTN/ISDN Emulation Sub-system (PES) Rel-2 Improvements  
PES Functional architecture 182 012
PES Stage 3 specification 183 043
QoS and Overload Control Rel-2  
Resource and Admission Control and the (x-RACF) in the Resource and Protocol specification 283 026
QoS Rel-2  
Requirements for QoS in a NGN 181 018
Architectures for QoS handling 182 022
Overload and Congestion Control (OCC)  
Control of Processing Overload Stage 2 Requirements 182 018
OCC Architecture Part 2 Overload and Congestion control (GOCAP) 283 039-2
OCC Part 4 Adaptative Control for the MGC 283 039-4
OCG Part 5 ISDN overload control at the Access Gateway 283 039-5
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List of TISPAN Rel-2 deliverables (6/8)
Network Attachment Sub-System (NASS) Rel-2 Improvements  
NASS Functional Architecture 282 004
NASS e2 interface based on the DIAMETER protocol 283 035
NASS a2 interface based on the DIAMETER protocol 183 059-1
NASS User-Network Interface Protocol Definitions 183 019
Customer Network Gateway Configuration Function e3 Interface based upon CWMP 183 065
NASS e4 interface based on the DIAMETER protocol 283 034
Resource and Admission Control Subsystem (RACS) Rel-2 Improvements  
RACS Functional Architecture 282 003
RAS H.248 Profile for controlling Border Gateway Functions (BGF) Protocol specification 283 018
RACS DIAMETER protocol for session based policy set-up information exchange between the Application Function (AF) and the Service Policy Decision Function (SPDF) Protocol specification Release 2 183 017
Re Reference Point Protocol Specification 183 060
Ri' Reference Point Protocol Specification 183 062
H.248 Profile for controlling Access and Residential Gateways 283 002
Network Management Rel-2  
WG8 Specification Guidelines 188 007
NGN Management Network Resource Model (NRM)  
NRM Part 1 Requirements 188 005-1
NRM Part 2 Information service 188 005-2
NRM Part 3 Solution set 188 005-3
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List of TISPAN Rel-2 deliverables (7/8)
NGN Subscription Management (SM)  
SM Part 1 Requirements 188 002-1
SM Part 2 Information Model 188 002-2
SM Part 3 Functional Architecture 188 002-3
NGN SECurity (SEC) Rel-2  
SEC Feasibility study of prevention of unsolicited communication in the NGN 187 009
Feasibility study on Media Security in TISPAN NGN 187 007
SEC Requirements - Rel-2 187 001
SEC Security Architecture Rel-2 187 003
SEC Threat, Vulnerability and Risk Analysis - Rel-2 187 002
NGN Release 2 Lawful Interception Stage 2 definition 187 005
Security Miscellaneous  
NGN Security Report on security of identity in the NGN 187 010
NGN Security Method for application of ISO 15408-2 requirements in NGN 187 011
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List of TISPAN Rel-2 deliverables (8/8)
Interworking  
Solution for REFER interworking problems 183 052
ISDN/SIP interworking 183 036
Endorsement of the SIP-ISUP Interworking between the IMS and CS networks 3GPP TS 29.163 (Release 7), modified 283 027
SDP Interworking between SIP/SDP and H.248/SDP 183 046
Other Rel-2 aspects  
H.248 Non-Call Related Procedures and Management System Interaction 183 025
H.248 Profile for controlling Trunking Media Gateways (TMG) Endorsement of 3GPP TS 29.332 (V7.7.0), modified 283 049
Support of Overlap sending v2 in a IMS NGN Release 2 183 056
Feasibility study on Out-of-band DTMF transport 183 057
NGN Architecture to support emergency communication from citizen to authority 182 009
XML Document Management Architecture and functional description 182 011
Testing Rel-2  
Network Performance objectives tests for IP-based Voice services 102 547
Explicit Communication Transfer (ECT) Testing - Part 1 PICS  186 015-1
Explicit Communication Transfer (ECT) Testing - Part 2 TSSTP 186 015-2
IMS NNI Interworking Test Specifications Part 1 Test Purposes for IMS NNI Interworking 186 011-1
IMS NNI Interworking Test Specifications Part 2 Test Descriptions for IMS NNI Interworking 186 011-2
Interworking between SIP and Bearer Independent Call Control Protocol or ISDN User Part, Profile A and BPart 1 Test Suite Structure and Test Purposes (TSSTP) 186 002-2