IP Multimedia Subsystem IMS Industry Status Expectations Challenges

IP Multimedia Subsystem (IMS) Industry Status/ Expectations/ Challenges Contacts: Contribution to: NANC Fo. N October 4, 2006 Copyright © 2006 2005 Telcordia Technologies All Rights Reserved Hala Mowafy hmowafy@telcordia. com (732) 699 -6525 Zehan Zeb zzeb@telcordia. com (732) 699 -6163

IMS Industry Status/Expectations: Outline Background and Drivers Standards Activities Research and Industry Forecasts § § § – Where the U. S. Stands on IMS Key Industry Players Industry Activities § § – – Implementations Trials Challenges – Risks, Obstacles and Success § Expected Adoption Cycle § IMS Industry Activities - 2

IMS IMS: An NGN Solution IMS Services • Push-to-talk • Gaming • Video conferencing Wi-Fi IP Multimedia Subsystem Internet 3 G Cable DSL PST N IMS Industry Activities - 3

IMS Market Trends and Operators *Source: MSO: Multi-Service Operator VSP: Virtual Service Provider Relevant. C 2004 IMS Industry Activities - 4

IMS PSTN to IMS Migration Mobile PSTN Internet Video Mobile Vo. IP Internet Multi-Media Services Video OAM&P IMS Service Applications Call/Session Control Switching & Transport User Device IMS Industry Activities - 5

IMS PSTN to IMS Migration Beginnings of IMS PSTN Emulation and Simulation True IMS Industry Activities - 6

IMS PSTN to IMS Migration SIP SMS GW GW Legacy mobility GW PSTN HSS SIP AS Transitional Messaging App Server (AS) PSTN Emulation and Simulation IMS Presence True IMS Industry Activities - 7

IMS SS 7 and IP The advent of IMS does not mark the immediate demise of the PSTN or SS 7 § – – § SS 7 continues to be a critical piece of value services such mobile, SMS and LNP The PSTN – as we know it – still has the widest reach to the world population and size matters when it comes to network value IP migration takes time and carriers will vary in level of progress; some will get there sooner than others IMS Industry Activities - 8

IMS Standardization IMS aims to standardize network interfaces and avoid fractured technologies and proprietary products § SP#1 – – Open network interfaces Open platforms SP#2 Applications and Services Layer OSS / BSS Layer Control Layer Network Layer IMS Industry Activities - 9

IMS Activities at Standards/Industry Forums § Background on 3 GPP and 3 GPP 2 3 GPP was pioneered by the European Telecommunications Standards Institute (ETSI) early in 1998 with the proposal to create a Third Generation Partnership Project (3 GPP) focusing on Global System for Mobile (GSM) technology – 3 GPP 2 was born out of the International Telecommunication Union's (ITU) International Mobile Telecommunications "IMT-2000" initiative, covering high speed, broadband, and Internet Protocol (IP)-based mobile systems for ANSI/TIA/EIA-41 (North America and Asia) – IMS Industry Activities - 10

IMS Activities at Standards/Industry Forums § Roots of IMS: 3 G Activities (3 GPP and 3 GPP 2) – 3 GPP (3 rd Generation Partnership Project) • Releases 4, 5, 6, 7 • TSG-SA: TSG Service and System Aspects (TSG SA) is responsible for the overall architecture and service capabilities of systems based on 3 GPP specifications, including charging, security and network management • TSG-CT: The TSG Core Network and Terminals (TSG CT) is responsible for specifying terminal interfaces (logical and physical), terminal capabilities (such as execution environments) and the Core network part of 3 GPP systems IMS Industry Activities - 11

IMS Activities at Standards/Industry Forums § 3 GPP 2 (3 rd Generation Partnership Project 2) – CDMA 2000 mobile networks – – – Mirroring IMS developments in 3 GPP TSG-S: The Services and Systems Aspects (TSG-S) is responsible for the development of service capability requirements based on 3 GPP 2 specifications. It is also responsible for high level architectural issues TSG-X: The TSG Core Networks (TSG-X) is responsible for: • charging, accounting and billing specifications • management of work items placed under its responsibility; • evolution of core network to support interoperability and intersystem operations; • network support for enhanced privacy, authentication, data integrity and other security aspects; • specifications for international roaming; • multimedia services (e. g. , voice over IP) • private network access • Qo. S support • IMS specifications IMS Industry Activities - 12

IMS Activities at Standards/Industry Forums GSC 9 GSC 10 ITU-T Global NGN Framework WTSA SG 11 NGN Framework WTSC T 1 P 1 OBF NGN Focus Group PTSC (T 1 S 1) NIIF NGN* Focus Group WAE FG MWS FG SG 15 Vo. IP FG TMOC (T 1 M 1) OPTXS (T 1 X 1) INC JWG SA 1 SA 2 ETSI NGN OSS STF NGN WG 8 TISPAN WG 7 WG 1 WG 6 WG 2 WG 3 WG 5 AT-D WG 4 LI NGN@home * Forums as of June 2005 PGC DMTF ECMA Tele. Management Forum OMA MESA TR-8. 8 CPWG TSG-C Parlay CCUI PM CBC IPDR TIA 3 GPP 2 OP TR-34. 1. 7 PAM W 3 C DSL Forum TSG-X TSG-A Transport Cable. Labs SG 09 SA 4 3 GPP 2 TSG-S Internet SG 02 SA 5 SA 3 Security SG 03 SG 16 3 GPP Routing O&M SG 04 SG 19 SG 17 IETF General NGNMFG SG 13 ATIS Applications OSS/J TR-41 TR-45. 2 OASIS TR-45. 6 Rosetta. Net EPCglobal IMS Industry Activities - 13

IMS Activities at Standards/Industry Forums § IETF: – IP Telephony and Internet Standards IP • IMS nodes must support IPv 6 • Mobility for IPv 4 – SIP, SIP Peering and SIP-based services simulate popular PSTN services and more, which include: • • Chat Location-based services Picture messaging (leverages IM and buddy lists) Video conferencing ENUM – DIAMETER – Emergency calling geographic location – Global communications for disaster recovery – IMS Industry Activities - 14

IMS Activities at Standards/Industry Forums § ETSI TISPAN: Recognize that evolution to IMS will take time and other forms of PSTN emulation will exist until full IMS is reached – Since September 2003, the ETSI Technical Committee TISPAN has been developing a set of standards that can be used by industry as the foundation for the Next Generation of Networks (NGN) – In December 2005, NGN R 1 was approved – IMS Industry Activities - 15

IMS Activities at Standards/Industry Forums § ITU-T Study Group (SG) 13 Focus Group on Next Generation Networks (FGNGN) approved NGN Release 1 Scope and Requirements in November 2005 – Also approved IMS for NGN – • Qo. S • Functional architecture • Service scenarios § ITU-T – SG 11 Approved draft technical report specifying the aspects of IP Qo. S signaling requirements in December 2005 IMS Industry Activities - 16

IMS Activities at Standards/Industry Forums § ATIS – NGN Focus Group: • NGN Framework • Gap Analysis – PTSC (Packet Technologies and Systems Committee) • IP-IP interconnection of carrier networks § Public and infrastructure ENUM • Call control • Border Control functions IMS Industry Activities - 17

IMS Activities at Standards/Industry Forums § Open – Mobile Alliance (OMA) Formed in June 2002 to facilitate global user adoption of mobile data services • Currently, there are 15 Technical Working Groups and two Committees of the Technical Plenary (e. g. , Browser & Content, Games Services, Location, Messaging, etc. ) – Consolidated the WAP Forum, Location Interoperability Forum (LIF), Sync. ML Initiative, MMS-IOP (Multimedia Messaging Interoperability Process), Wireless Village, Mobile Gaming Interoperability Forum (MGIF), and the Mobile Wireless Internet Forum (MWIF) into OMA IMS Industry Activities - 18

IMS Activities at Standards/Industry Forums § Other Industry Impacts of IMS that will drive standards or de-facto standards efforts: – Billing and OSS changes • • • – Settlements Detail Recording Home Subscriber Server (HSS) DIAMETER is the chosen accounting protocol Even IPDR is not IMS-ready Special SIP-based handsets IMS Industry Activities - 19

IMS Industry Players § Service Providers (including ISPs, ASPs) § § § § § AT&T British Telecom (BT) Cingular France Telecom Microsoft NTTDo. Co. Mo (Japan) Sprint-Nextel South Korea Telecom Telia. Sonera (Finland Sweden) § Equipment • • • vendors Cisco Ericsson HP Lucent Nokia Nortel Siemens Tekelec Verso IMS Industry Activities - 20

IMS Other Industry Players Web developers are proponents of open Internet access (Net Neutrality) Competition is imminent; § § – § 3 rd party voice, like Skype and Vonage do not need IMS Service providers, such as BT, recognize that their next-generation revenues could be affected if the applications providers do not come on board IMS Industry Activities - 21

IMS Other Industry Players IPSphere § – – Focus on the “business of IP” Members include: • • • Alcatel AT&T BT Cisco Ericsson HP IBM Nortel Siemens Verizon IMS Industry Activities - 22

IMS Other Industry Players IMS Forum § – – Used to be the International Packet Communications Consortium (IPCC) Accelerates the adoption of IP Multimedia Subsystems by providing an environment for discussion and resolution of real world implementation issues relating to interoperability, best practices, and standardsbased architectures IMS Industry Activities - 23

IMS Research and Forecasts § Research from Apertio (5 th April 2006, CTIA) shows that US Leads the Way Towards IMS – – US global telecommunications operators overwhelmingly place greater emphasis on deploying IMS, in comparison with European operators 86 percent of US operators classify it as a key business priority, versus 66 percent of their European counterparts Nearly one in five US operators also expect return on investment (ROI) in less than two years - more ambitious than those in Europe The research, ‘IP Independence’, also found key drivers towards IMS are • the cost of new service provisioning on conventional architecture, and • the need to offer attractive service bundles to subscribers to prevent churn and increase data usage IMS Industry Activities - 24

IMS Research and Forecasts (contd. ) § Key findings from the Apertio research are: – 93% of respondents believe that IMS will have a positive impact on operational cost reduction, with 40% considering that impact to be ‘significant’ – 85% of respondents also see the removal of legacy infrastructure as a critical aspect of reducing operational cost – 79% of carriers are using a disparate combination of tactics to deliver IMS, highlighting a lack of best practice § According to Pyramid Research (Warren Communications, August 18), 66% of household Vo. IP users will run on an IMS platform by 2010 IMS Industry Activities - 25

IMS Research and Forecasts (contd. ) § Some studies show the main motivation for IMS is to Reduce Operating Costs § At the VON Fall 2006, IMS panel discussions revealed that: 77% of survey respondents plan to deploy IMS in next 2 years – ROI is still a “grey area” – Majority is looking for long-term savings of 10. 5% – Service capability may not be the main driver for IMS deployment – IMS Industry Activities - 26

IMS Trials § Global Trial of IMS R 3 – The Multiservice Switching Forum (MSF) will hold a global trial in October 2006 (network test facilities across three continents) – Involves five leading carriers: BT, KT, NTT, Verizon and Vodafone – Concerns over interoperability and roaming for real-time applications § GSMA global trials – GSMA is a global trade association consisting of 2 G and 3 G operators and manufacturers – Recent press releases by Siemens and Time Warner Cable indicated their preliminary trials demonstrated successful integration of fixed line, mobile and Wi. Fi IMS Industry Activities - 27

IMS Trials (contd. ) § IPSphere Forum announced in May 2006, several key milestones in the Forum’s formal work program § On May 9, in Tokyo, the IPSphere staged a working instantiation of mediated next-gen, video services to leading Asia Pacific networks IMS Industry Activities - 28

IMS Obstacles/Challenges § The following are recognized as the major categories of challenges for IMS operators: Business Issues • E. g. , choosing the correct strategies for doing business in a multi-carrier-vendor environment – Technical Issues • E. g. , choosing the correct strategies for introducing elements of IMS into any network – Interoperability • E. g. , keeping track of the crucial migratory issues, interoperability and interconnectivity with existing network infrastructure – IMS Industry Activities - 29

IMS Obstacles/Challenges (contd. ) § Other challenges include – Handset compatibility – Lack of high-quality dual-mode capable handsets – Battery life – Differences due to operator implementation of • early IMS • Authentication mechanisms • SIP compliance – Subscriber-centric policy management • Making IP applications available over any network requires greater focus on the subscriber, rather than on any particular network IMS Industry Activities - 30

IMS Obstacles/Challenges (contd. ) § There are concerns that IMS is being delivered in releases, and that different vendors might conform to different releases, like what happened with IN § There are questions as to “who’s in charge” among the standards bodies § Roll-out of IMS will likely create additional traffic – Need measures to avoid severe congestion problems IMS Industry Activities - 31

IMS Obstacles/Challenges: Charging § Challenges still lie ahead for session and eventbased charging § Dual-mode Handsets (that could be used in multiple networks) could expedite IMS development – – But, revenue management, billing and rating of calls in the dual-mode environment is a “new frontier” Capturing all the pieces of a call or event and correlating them is the hardest challenge IMS Industry Activities - 32

IMS Open Issues § IMS will be limited by the availability of an all-IP network; its magic will be fully realized when IP is everywhere § Web application developers such as AOL, Microsoft, have the same goal, but do not see the need for a platform like IMS – – IMS fits the legacy provider’s business model Microsoft argues that web technologies that give people anytime, anywhere already exist IMS Industry Activities - 33

IMS Adoption Cycle § Legacy and IMS Networks will coexist for a long time § According to vendors, carriers and analysts, it could be anywhere from seven years up to 15 years before most of the service providers will be running most of their services over an IMS core network § IMS may have a long adoption cycle, but operators are predicting IMS services will reach critical mass within three to five years IMS Industry Activities - 34

IMS Adoption Cycle (contd. ) Recent research by In-Stat, found the following: § Wireless carrier revenues from IMS applications in the US could be as high as $14 billion by 2011 § It is likely that the significant growth in IMS applications and services being offered by wireless will begin to appear well into 2007 § Despite that relatively late start, there could eventually be as many as 72 million IMS users in the US by 2011 IMS Industry Activities - 35

IMS § Comments/Questions? § Thank you IMS Industry Activities - 36