Joint ITU-T Workshop and IMTC Forum 2006 on "H.323, SIP: is H.325 next?"
Joint ITU-T Workshop and IMTC Forum 2006 on "H.323, SIP: is H.325 next?"
San Diego, California, USA, 9-11 May 2006
Speaker: Mr. Kari Pulli, Research Fellow at Nokia
Keynote Speech: New Standards For Mobil Graphics
Progress in mobile graphics technology during the last five years has been swift, and it has followed a
similar path as on PCs: early proprietary software engines running on integer hardware paved the way to
standards that provide a roadmap for graphics hardware acceleration. In this overview we cover five recent
standards for 3D and 2D vector graphics for mobile devices. OpenGL ES is a low-level API for 3D graphics,
meant for applications written in C or C++. M3G (JSR 184) is a high-level 3D API for mobile Java that can
be implemented on top of OpenGL ES. Collada is a content interchange format and API that allows combining
digital content creation tools and exporting the results to different run-time systems, including OpenGL ES
and M3G. Two new 2D vector graphics APIs reflect the relations of OpenGL ES and M3G: OpenVG is a low-level
API for C/C++ that can be used as a building block for a high-level mobile Java API JSR 226.
Session 1: Real-time conferencing / conversation
Speaker: Istvan Sebestyen, Siemens; Dave Lindbergh, Polycom
Title of Presentation: Status of the "H.325 Project"
This presentation provides an update to the ITU-T SG16 "H.325 Project". This project is still in its
"exploration" phase. It aims to clarify whether it is worthwhile to define a 3rd generation of ITU-T
defined multimedia systems and terminals. By doing so it suggest some design criteria and ideas for
investigation and discussion.
Speaker: Mr. Paul E. Jones, Cisco Systems, Inc.
Title of Presentation: H.325 – Third Generation Multimedia System
This presentation starts with a historical view of the current systems (SIP and H.323, specifically),
highlights some of the limitations of those systems, and discusses some of the consequences that
result from those limitations. The presentation then presents a couple of views of H.325 under consideration,
along with some design ideas for the new system.
Speaker: Mr. Stefan Wenger, Nokia
Title of Presentation: H.325 as a chance to converge SIP-based terminal design
Undoubtedly, the world converges on SIP as the call control protocol. The IETF SIP-based standardization
does not see it as their main goal to specify terminals. So far, already numerous standardized and
non-standardized Sip-based terminal architectures exist, which are often not compatible to each other.
The talk advocates the need for a specification summing up the commonalities of these architectures,
in the hopes that at least minimal interoperability could be achieved.
Speaker: Mr. Richard Brennan, Vice-Chair ETSI TISPAN
Title of Presentation: TISPAN update
Since it’s inception in September 2003, the ETSI Technical Committee TISPAN has been developing a set of
standards that can be used as a foundation for Next Generation Networks (NGN). TISPAN works in cooperation
with other organizations in planning for the convergence between the traditional public switched telephone
networks (PSTN) and new IP-based mobile and fixed networks. TISPAN has focused on the re-purposing of the
IMS (IP Multimedia Subsystem) core developed by 3GPP, for use in various fixed network implementations.
Speaker: Mr. Tyler Miller Johnson, Director of Telecommunications Research and Development, Acting
Information Technology Services, University of North Carolina
Title of Presentation: Internet2 project and H.325
This presentation discusses perspectives developed in the educational research networks that current
protocols are not sufficient for the developing application space and work should commence on a new,
distributed multimedia communication system.
Speaker: Mr. Peter Saint-Andre, Jabber Software Foundation (JSF)
Title of Presentation: Jingle: Jabber Does Multimedia
Jingle is an emerging technology for multimedia session management, built on the foundation of the open
Jabber/XMPP protocols, which were standardized through the IETF in 2004. This talk will describe the
pluggable Jingle framework, Jingle transports for RTP and IAX, Jingle media formats for audio and video,
interoperability with existing technologies, coming support in Google Talk and Asterisk, and future plans
Speaker: Ms. Andrea J Saks, Independent Accessibility Consultant
Title of Presentation: Accessibility in New Emerging Networks and Services
It is important for new emerging networks and services to consider accessibility from the very beginning.
When planning, developing, designing, and distributing telecommunications equipment and services,
developers should consider people with special requirements to ensure that they can use such equipment
and services as much as possible. “Designing For All” from the very beginning to include accessibility
aspects will reduce the cost of having to redesign or add costly amendments later. By enabling the elderly
and disabled populations to not only maintain present access, you enable and facilitate the migration to
new services. The point is imperative to have the largest population of people have continuous access to
ICT in a communication world that is constantly changing by new technological innovations. The reason
is simple: the target market will be larger. The largest aging population is becoming the biggest market
emerging now from the post World War II baby boom and increased life expectancy.
The inclusion of accessibility aspects in the past has proven to be useful to mainstream society as in the
example of the inclusion of captions for television transmission. The same application will apply to IPTV.
The concept of Total Conversation, which includes real time text, video and audio, should be implemented to
include everyone in video telephony. Worldwide compatibility and interoperability is not only important for
mainstream communication, but to accessibility. Accessibility and mainstream applications in Networks and
Services should be regarding in the same light from the beginning.
Speaker: Dr. Yoichi Kato, NTT-IT Corp.
Title of Presentation: A Web Conference System Architecture for the Broadband Era
The presentation discusses the design concept and architecture of a successful Web Conference System for
the broadband era. The basic requirements include abilities for multi-user sessions (i.e., sessions with
more than 20 locations), rich document sharing support and optimized video and audio communication systems.
We need to combine these requirements with the contemporary networks where the IP architecture unifies
various network elements with different and time-varying bandwidth. Unfortunately the existing H.32x
series specifications are not suitable for these requirements and therefore many ‘Web Conference’
systems do not utilize these standards.
The traditional standardization basically specifies the ability of terminals and other units
(such as ‘gateways’) and the protocols needed between them. There was an implicit assumption
that the ‘terminals’ were expensive, and therefore the terminal equipment made by different
manufacturers should be able to communicate with each other. But assuming that one uses a PCs
(or other personal computer), an IP-based network, and the terminal function is replaced by
licensed software, you download and use anytime you participate to a conference. In this scenario,
standardizing the protocol between ‘terminals’ is not necessity. The Internet and PCs become the new
standard. The presenter shows his view on what is really necessary for standardization.
Session 2: IMTC Award
Speaker: Dr. Joan l. Mitchell, IBM Printing Systems Division
Title of Presentation: Jump-Starting a New Standard & Other Non-Standard Topics
In the last three decades there have been some dramatic changes in the world of standards.
More and more of industry is now embracing open standards rather than proprietary, go-it-alone
solutions. Companies are recognizing that they can still differentiate products and add value
while adhering to standards that allow them to communicate across company boundaries. More and
more standards are being set in anticipation of a need rather than blessing existing de facto
standards. It is frustrating to work on a standard and then have no one adopt it. Sometimes even
good standards never take off. This talk will focus on the speaker's experiences in standards
and her suggestions for how to jump-start a new standard.
In addition, she will share two of her current activities, “Moving People Up the Value-Chain” and
“Girls Leaving Math and Science”.
Session 3: New Developments on Media Codecs
Speaker: Mr. Ajay Luthra, Motorola
Title of Presentation: AVC/H.264 Digital Video Compression Standard and its Applications
MPEG-4 Advanced Video Coding (AVC) standard, also known as ITU-T H.264, is the latest video coding
standard being developed by the Joint Video Team (JVT) consisting of experts from ISO (MPEG) and ITU-T
(VCEG). It includes the most advanced video coding tools providing the coding efficiency that is
significantly better than that of the most widely deployed standard today - MPEG-2. It allows distribution
of high quality video with lot less bandwidth and/or storage requirements.
In this presentation, a brief introduction to the history and the technology behind AVC will be given.
Its performance with some of the existing standards, like MPEG-2 and MPEG-4 Advanced Simple Profiles will
be compared. Its impact on the IPTV, distribution of TV over DSL, Home Networking, digital TV (SDTV and HDTV),
DVD, video telephony & conferencing and streaming video will also be discussed.
Speaker: Claude Lamblin, France Telecom
Title of Presentation: New Audio/Speech Coding Developments in ITU-T
In order to provide a Universal Multimedia Access to users, various networks and terminals are interconnected
with different access technologies. To cope with this heterogeneity, audio coding development has been driven
by three objectives: quality enhancement, flexibility improvement and increase of robustness. After decades of
bit rate lowering, there is now a clear evolution toward more bandwidth for a higher Quality of Service. A major
flexibility improvement is brought by scalable codecs capable to interoperate at multiple bit rates and frequency
ranges. Besides, robustness to channel errors is required to cope with packet losses. Robustness to input signal
characteristics is also needed.
This presentation shows how the recent ITU-T Audio/Speech Coding works intent to answer these needs either by
offering super wideband multirate standard (ITU-T G.722.1 C) or highly flexible fine bit rate granularity narrow
band and wideband standard (ITU-T G.729.1). The under study works concerning another embedded speech coding
scheme with multiple rates and bandwidths (G.VBR) and a multimedia convergence coder (G.MMCC) follows these
trends. Meanwhile, the work on development of additional features (Voice Activity Detector, Packet Loss
Concealment procedure, Software Tools Library) necessary to accommodate current coders to new application
requirements has continued.
Speaker: Imre Varga and Cristophe Beaugeant, Siemens
Title of Presentation: The G.729EV Codec
The wish for more comfortable new services offering better quality implies among others the introduction of
wideband speech telephony operating at 16 kHz sampling frequency instead of the commonly used narrowband
telephony service. In order to keep compatibility with existing implementations and to avoid a complete redesign
of the network infrastructure when using a new codec, ITU-T SG 16 completed the standardization of a scalable
wideband codec whose core part is compatible with G.729. This new codec targets mainly Voice over IP applications.
Scalability provides advanced features as for example better control of network congestions and possible
complexity adjustment of the codec to provide flexibility for its integration on different terminals
(from low-end to high-end devices).
Speaker: Dr. Joan L. Mitchell, IBM Printing Systems Division
Title of Presentation: Time to Enhance JPEG-1
The original JPEG (Joint Photographic Experts Group) still image data compression standard was frozen in
the early 90s. This widely used standard was the effort of a joint committee sponsored by ISO/IEC and ITU-T
(formerly CCITT). The original committee ISO/IEC JCT1/SC29/WG1 moved on and created several more incompatible
joint and non-joint standards. The ITU-T parent was receptive to building enhancements into its first JPEG
standard. The first ITU-only upgrade (T.851) came out in September 2005. It added an additional (fee-free)
arithmetic coder, extended the allowed DCT input precision, and created an alternative baseline coder. The
committee is exploring addition enhancements. Others are invited to participate.
Speaker: Ms. Susie Wee, HP Labs
Title of Presentation: JPSEC: Security for Digital Imagery in JPEG 2000
JPEG 2000 Security (JPSEC), part 8 of the JPEG 2000 family of standards, is an emerging standard
that provides security services for JPEG 2000 images. These security services include
confidentiality, integrity verification, source authentication, conditional access, and secure
scalable streaming and secure transcoding. JPSEC provides these security services in a manner
that maintains the inherent features of JPEG 2000 such as scalability and access to various spatial
areas, resolution levels, color components, and quality layers, while providing security services
on these elements. This presentation will give an overview of the emerging JPSEC standard and
describe various applications and use cases.
Session 4: IPTV
Speaker: Mr. Ralf Schńfer, Thomson
Title of Presentation: DVB-IP Standardization
The Digital Video Broadcasting Project (DVB, www.dvb.org) has been working for many years in the digital
audio/video distribution world. Some of its recent activities are focusing on integration of IP infrastructure
within the digital audio/video domain. The DVB’s phase 3 vision is ‘to build a content environment that combines
the stability and interoperability of the world of broadcast with the vigour, innovation and multiplicity of
services of the world of the Internet’.
The work inside DVB is carried out in commercial and technical subgroups. This presentation with the title
“DVB-IP Standardization” gives an overview of the contents of the already released DVB-IP specifications and
the work currently being carried out in the technical groups. Furthermore it gives information on the roadmap
of DVB-IP, showing how the standard will evolve.
Speaker: Mr. Noel Matthews, TANDBERG Television
Title of Presentation: Enabling technologies to launch advanced IPTV services
In the past five years the consumer has changed. The availability of increasingly sophisticated personal
media services has created a new generation of digital savvy consumers. With devices such as digital cameras
and video phones, MP3 players, personal video players and gaming consoles that use WiFi to connect to the
internet, the consumer is becoming more and more accustomed to living in a world where he or she can access
content anytime, anywhere
New content delivery methods such as IPTV and HDTV are creating opportunities for content owners and platform
operators, as are enhanced service features such as on-demand, interactive and mobile TV.
Time shifted viewing is having a significant impact on the way entertainment, information and advertising
are seen by the consumer and this change in consumption is having a direct impact on the way that content
is delivered to the consumer.
The TV industry has changed significantly over the last decade, but it must change further and more rapidly
if it is to face these new challenges and remain the primary method of delivery of media content to the
The challenge facing the new IPTV and existing platform operators and broadcasters is the task of packing as
much consumer-grabbing video entertainment and information as possible into limited bandwidth. What’s more,
the need to build today’s offerings on non-proprietary, open standards is key if operators, broadcasters and
content owners want to ensure they are not locked into technology that is expensive to scale and adapt.
The paper will look at step changes happening in the world of media delivery and will examine the commercial
and technical challenges IPTV operators face over the next 3 years.
Speaker: Ms. Orit Levin, Microsoft Corporation
Title of Presentation: IPTV Standards Perspective
This presentation will provide an overview of the IPTV scope and state as currently perceived by the industry.
IPTV relation to NGN and IMS architectures will be described. The presentation will also describe the IPTV
delivery chain with the roles, functions, and the objectives of each component in the chain. Finally, the
presentation will show how existing and new standardization activities map into the presented picture.
Speaker: Mr. Yoshinori Goto, NTT
Title of Presentation: Emulating TV broadcasting over IP network
This presentation provides the recent progress of IPTV, particularly focusing on the emulation of conventional
broadcasting services. The emulation of conventional TV broadcasting on IP network seems to be less fashionable,
but recently obvious necessity is being recognized. Also, the emulation is expected to encourage the smooth
exchange of contents between the conventional broadcast media and IPTV industry.
When we consider the emulation technique, some special items derived from the requirements of stake holders and
the regulatory frameworks are required to be considered. In other word, if we only consider the technical aspect
of IPTV, some IPTV operators will probably face with a severe response from stake holders.
Japanese organization started the standardization activity for this type of IPTV in 2004. Since then, it has
published a technical report containing some requirements and technical solutions. This activity is also
reflected in ITU-T activity.
Speaker: Mr. Kaynam Hedayat, Brix Networks
Title of Presentation: IPTV Service Assurance: Challenges And Approaches For A Comprehensive Solution
The emergence of IPTV has introduced new performance requirements on Next Generation Networks and new operating
challenges for service providers. What are video’s QoS requirements and how can providers manage the service
quality to assure customer satisfaction? The presentation provides an overview of IPTV service assurance
challenges with an overview of a distributed performance management system architecture that is addressing
service providers’ needs today.
Session 5: Mobile Multimedia Technologies
Speaker: Dr. Marwan Jabri, Founder & CTO, Dilithium Networks
Title of Presentation: Multimedia Technologies for Convergent Networks
This presentation provides an overview of the critical technologies required for delivering multimedia
applications and services across converged networks. Convergence in this context means interoperability
between Broadband IP, 3G UMTS and WLAN/WiMAX networks. Critical issues are explored that relate to the
quality of the customer experience and the take-up of new video applications and services. Multiple
existing and new technologies are explored for solving network and customer quality challenges.
Speaker: Dr. Leo Lehmann, Federal Office of Communications (OFCOM) Switzerland
Title of Presentation: ITU-T Standardization of Multimedia Service Mobility: Current Status and Future Directions for Telecommunication Networks
Service Mobility defines the ability of a user to access the particular (Multimedia-) services, which he/she has
subscribed to, irrespective of the location of the user and the terminal that is used for that purpose. In the
first part of the presentation an overview is given on the actual status of ITU-T standardization with regard to
Mobility Management for Multimedia Systems, considering the H.5xx Standard and its extension to enable mobile
H.323 based Multimedia services to be offered by IMT2000 based telecommunication networks. Within its second
part the presentation identifies the possibilities to deploy service mobility with regard to the provisioning
of Multimedia Services within a future H.325 context by an underlying fix/ mobile converged network architecture
such as defined by the ITU for the Next Generation Network (NGN). Beside the capability analysis of existing
protocols with regard to their ability to support service mobility for multimedia applications the presentation
shows also different variants for handling the service control in a roaming case (home centric control versus
visited centric control). Furthermore the basic requirements with regard to realization of both variants are
Speaker: Mr. Jeff Cortley, Director-Applications Product Management, Lucent Technologies
Title of Presentation: Infrastructure of a Ubiquitous Society
Rapid advances in network technology and IP multimedia applications are stimulating customers’ appetite
for the potential of next generation services to support their increasingly hectic lifestyles and faster
paced work environment. Today the challenge facing the telecommunications market is no longer the deployment
of technology but rather the consumer adoption of this technology and the unleashing of Value over IPTM .
This presentation examines the opportunities and challenges facing the industry in bringing next generation,
multimedia services to market in a simple, seamless, secure, personal and portable context
Speaker: Mr. Deepak Kamlani, President and CEO of Global Inventures, Inc.
Title of Presentation: Emerging Quad Play initiatives and implications in the public and home networks
With the ongoing penetration of wired and wireless broadband connectivity and in-home networks.
Internet access, and networked devices, operators and vendors alike have to date focused on 'triple play'
strategies to drive bundles of voice, data, and video services to consumers. But the environment is changing
rapidly. The emergence of the mobile device opens new supply and demand scenarios and suggests that the
future will more accurately render 'quad play' opportunities, where the mobile device and network is at the
epicenter of a convergence paradigm. Mobile based streaming, television, commerce, command and control, and
telematics are key applications sets.
This presentation will examine the triple play and quad play environment, highlight the key trends, and offer
perspective on the new opportunities and implications for the value chain- from the network clouds through to
Speaker: Mr. Ralph Neff, PacketVideo Corp.
Title of Presentation: H.324 Call Setup Acceleration: An Introduction to MONA
Millions of people in Europe and Asia are proud owners of 3G mobile phones with built in 3G-324m
videophone functionality, and the market is growing. However, there is general agreement that the
call setup time for video calls is too long to provide a good experience to the user.
This presentation provides an overview on recent work in ITU-T and other bodies to develop a
solution to this problem. In particular, several technology proposals in ITU-T SG16 Question 1
were recently combined into a common call setup acceleration framework called MONA, which is on
track to become a new annex of the H.324 specification. The presentation provides an introduction
to MONA, explains how the contributing technologies fit together, and discusses the performance
under various typical call scenarios. The next steps for standardization, testing and deployment
are also discussed.