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 Monday, May 01, 2006

A new standard extending support of a key communications tool for the deaf and hard of hearing to IP-based networks was consented at a recent meeting of ITU-T’s Study Group 16. The continued support of textphones (TTYs) as operators increasingly shift to IP is important for the many thousands of users of these systems.

The announcement marks a key milestone in the development of what ITU terms Total Conversation, that is the convergence of voice, video and text telephony.

The new standard known as ITU-T Recommendation V.151 relates to text over IP (ToIP). ToIP is the transport of real-time text over IP networks. It differs from instant messaging in that ToIP systems transmit bi-directionally, one character at a time. This gives the user the feel of real-time communication, just like voice or video systems that transport streaming media over IP.

ToIP services are available using a legacy textphone (TTY) which has long been the preferred tool of the deaf and hard of hearing, an enabled IP phone or a PC-based client.

V.151 has an important role to play in the protection of text quality when transported through IP networks, also offering the potential to enable communication between earlier incompatible textphones from different regions.

Monday, May 01, 2006 4:26:33 PM (W. Europe Standard Time, UTC+01:00)  #     | 

The following files relative to AAP have been updated since 2006-04-28

Group : aap
updated :          2006-04-28 19:05:29      
title :          [035] AAP Announcement No. 35, 1 May 2006, (SG 13, 15, 16)
url :          http://www.itu.int/itudoc/itu-t/aap/announce/05-08/035.html
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Note : This is an automatic message for ITU-T/TSB Alternative Approval Process

 - For further questions, please contact TSB EDH at tsbedh@itu.int
 - For documentation, go to http://www.itu.int/ITU-T/aap/index.html
 - Comments on Recommendations under AAP should be submitted by filling the appropriate forms in each Study Group AAP web page and sent to the relevant Study Group email address

More on AAP

Monday, May 01, 2006 8:57:24 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Thursday, April 27, 2006

Work in the video coding space progressed, following meetings taking place in Geneva in April.

Also, the beginning of the month saw the Japan launch of a new mobile terrestrial digital audio/video broadcasting service using H.264 and called "1seg".  The video compression standard (full name ITU-T Rec. H.264 or MPEG-4 pt.10/ AVC) jointly developed by ITU-T SG16 and the ISO/IEC Moving Picture Experts Group (MPEG) is now being deployed in products from companies including Apple, Sony, BT, France Telecom, Intel, Motorola, Nokia, Polycom, Samsung, Tandberg and Toshiba and in services such as over-the-air broadcast television, the new HD DVD and Blu Ray disc formats, and a large number of deployments of direct-broadcast satellite-based television services.

In Geneva, a new Recommendation was consented that will allow the use of a ‘back channel’ to convey the level of loss or corruption in video messages and if necessary apply measures to compensate for that. So, for example, at the content delivery end, an encoder, upon determining that a message is not getting through properly, may decide to reduce the message to its bare essentials resulting in a lower fidelity for the end user. Alternatively, the encoder and decoder can deploy intelligent recovery mechanisms. This will better support Recommendation H.264’s use in environments that may be more susceptible to error, for example in mobile telephony and IP-based video conferencing.

The new Recommendation has been drafted in such a way that it can be applied to existing (e.g. H.262, H.263, H,264) and future video coding standards. 

The work took place during co-located meetings of the Joint Video Team (JVT) and ITU-T Study Group 16, home of media coding work in the ITU. Over 90 documents were considered by the JVT group, which is the ITU-T and ISO/IEC joint project to enhance standard video coding performance, and is home to H.264/AVC.

An amendment to H.264 added support of new extended-gamut colour spaces, which are recently-specified enhanced methods of measuring and representing the brightness and color of the objects in video pictures. Also, in relation to H.264, work continued on developing new profiles supporting H.264’s use in high-end studio applications that use the 4:4:4 color sampling system and on developing scalable video coding (SVC) extensions of the standard as well.


Thursday, April 27, 2006 8:27:12 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Friday, April 07, 2006

Document 46: Final Report of the TSB Director’s Consultation Meeting on IPTV Standardization (Geneva, 4-5 April 2006) [Source: TSB]

Document 45: Agenda for the TSB Director’s Consultation Meeting on IPTV Standardization, (Geneva, 4-5 April 2006) [Source: TSB]

Document 44: Final List of Documents of the TSB Director’s Consultation Meeting on IPTV Standardization (Geneva, 4-5 April 2006) [Source: TSB]

Document 43: Final List of Participants of the TSB Director’s Consultation Meeting on IPTV Standardization (Geneva, 4-5 April 2006) [Source: TSB]

More on the TSB Director’s consultation meeting on IPTV standardization

Friday, April 07, 2006 5:44:07 PM (W. Europe Standard Time, UTC+01:00)  #     | 
 Wednesday, April 05, 2006
ITU will take the lead in international standardization for IPTV with the announcement that it is to form a Focus Group on IPTV (IPTV FG).

The announcement, while acknowledging that standards work is ongoing in many different places, including ITU, is a reaction to an industry call for ITU to push forward and coordinate global standardization effort in the field.

IPTV is a system where a digital television service is delivered to consumers using the Internet protocol over a broadband connection. It will help pave the way for players, many of whom are already moving to IP-based NGN infrastructure, to offer a triple-play of video, voice and data.

Standards are necessary in order to give service providers, whether traditional broadcasters, ISPs or telecoms service providers, control over their platforms and their offerings. Standards here will encourage innovation, help mask the complexity of services, guarantee QoS, ensure interoperability and ultimately help players remain competitive.

The mission of IPTV FG is to coordinate and promote the development of global IPTV standards taking into account the existing work of the ITU study groups as well as SDOs, fora and consortia.

The group was launched following a decision taken at a public consultation meeting attended by around 120 experts from the world’s ICT companies. Attendees agreed that all players in the IPTV value chain will benefit from worldwide standards, that there is a lot of work to be done and that rapid progress is necessary in order to avoid market fragmentation. The Focus Group mechanism was seen as the most effective way of addressing this. Inputs to the meeting as well as a webcast can be found here.

Houlin Zhao, Director of the Telecommunication Standardization Bureau of ITU: “We have seen a desire to expedite and accelerate a global focus on standards for IPTV. There has been extraordinary consensus that ITU must lead this work and I am pleased that – again - ITU is seen as the right place to develop and harmonize this international standardization work, as well as identify and help fill gaps where there is still a standardization need.”

Bilel Jamoussi, Director Strategic Standards, Nortel, said: “Industry applauds ITU’s initiative to create this Focus Group and will contribute to its success.”

The FG will build upon existing work. Its scope will include architecture and requirements, QoS, security, network and control aspects, end system aspects – terminals etc., interoperability, middleware and application platforms.

Wednesday, April 05, 2006 7:02:38 PM (W. Europe Standard Time, UTC+01:00)  #     | 
 Tuesday, April 04, 2006

Document 41: H.264/MPEG4-AVC for IPTV [Source: ITU-T Study Group 16]

Document 40: Standardization Activities on End-to-end Multicast Communications [Source: ITU-T Study Group 17 Question 1]

Revised Attachment to Document 31: Considerations on IPTV standardisation activities and the Telecom Italia Strategy [Source: Telecom Italia]

Attachment to Document 15: Issues in Standardizing IP/TV Services [Source: France Telecom]

Attachment to Document 6: The IPTV concept model discussed in Japan [Source: NTT, KDDI, Hitachi, Matsushita Electric Industrial, Mitsubishi Electric, Sharp, Sony]

More on the TSB Director’s consultation meeting on IPTV standardization

Tuesday, April 04, 2006 2:19:06 PM (W. Europe Standard Time, UTC+01:00)  #     | 

AAP Announcement UPDATE NOTIFICATION

The following files relative to AAP have been updated since 2006-03-31

Group : aap
updated :          2006-03-31 17:53:21      
title :          [033] AAP Announcement No. 033, 1 April 2006, (SG 4, 13, 15, 17)
url :          http://www.itu.int/itudoc/itu-t/aap/announce/05-08/033.html
-------------------------------------------------------------
 
Note : This is an automatic message for ITU-T/TSB Alternative Approval Process

 - For further questions, please contact TSB EDH at tsbedh@itu.int
 - For documentation, go to http://www.itu.int/ITU-T/aap/index.html
 - Comments on Recommendations under AAP should be submitted by filling the appropriate forms in each Study Group AAP web page and sent to the relevant Study Group email address

More on AAP 

Tuesday, April 04, 2006 8:27:35 AM (W. Europe Standard Time, UTC+01:00)  #     |