International Telecommunication Union   ITU
 
 
Site Map Contact us Print Version
 Friday, May 19, 2006

SAM'06, is the short title for the Fifth Workshop on System Analysis and Modelling (formerly SDL and MSC Workshop). The event will be held May 31st - June 2nd, 2006, University of Kaiserslautern, Kaiserslautern, Germany.

The event, which serves as a platform where the evolution and use of system design languages (SDL) and technologies is discussed, is targeted at academics and others involved in these areas. The SAM Workshop is organised every second year by the SDL Forum Society, which is a non-profit organisation established by language users and tool providers to promote and develop ITU-T modelling techniques. SDL Forum activity is closely aligned with ITU-T, which recommends and publishes the languages ASN.1, MSC, SDL, eODL, TTCN and URN. Study Group 17 is ITU-T’s Lead Study Group on Languages and Description Techniques.

For more information about SAM'06, please see the web page.

SDL Forum also organises the SDL Forum event every other year that addresses topics related to the modelling and analysis of reactive systems, distributed systems such as telecommunications, automotive, aerospace and web-based applications, where SDL are used. The intended audience includes users of modelling techniques (in industrial research and standardization contexts), tool vendors, and language researchers.

For more information about the thirteenth SDL Forum to be held 2007, please see the web page.

Friday, May 19, 2006 9:09:49 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Thursday, May 11, 2006

The Security Assertion Markup Language (SAML) and Extensible Access Control Markup Language (XACML) authored by OASIS (Organization for the Advancement of Structured Information Standards) have been consented as internationally recognised ITU-T Recommendations. The announcement is the first result of the formal relationship between the standardization sector of ITU and OASIS.

The standards (ITU-T Recommendations X.1141 (SAML) and X.1142 (XACML)) address the concern of how to allow safe single sign-on, a system that enables a user to authenticate once and gain access to the resources of multiple software systems. While solutions existed in this space, all were proprietary, and therefore not addressing the problem on a global level.

SAML and XACML are designed to control access to devices and applications on a network. The need for standards in this area has become more of an issue as business networks increasingly use the public Internet.

SAML addresses authentication and provides a mechanism for transferring authentication and authorization decisions between cooperating entities, XACML leverages this information to determine access to resources by focusing on the mechanism for arriving at those authorization decisions.

An additional feature of SAML is that it allows organizations to communicate information without any change to their own internal security architectures.

Thursday, May 11, 2006 8:44:29 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 Tuesday, May 09, 2006

SG16 completed work on a new scalable voice codec - G729.1 - that will significantly improve voice quality in VoIP calls by offering wideband quality. Wideband telephony gives more natural sounding voice and greatly improves intelligibility and listening comfort.

G.729.1 extends the ITU-T G.729 speech coding standard widely used in VoIP systems and is fully interoperable with it. It will allow smooth transition from narrow band (300-3400 Hz) "PSTN" quality telephony to high quality wideband (50-7000Hz) telephony over IP and efficient deployment in existing infrastructures.

G.729.1 can operate at 12 bit rates from 32 kbit/s down to 8 kbit/s with wideband quality above 14kbit/s to dynamically provide the optimum voice quality according to service and network constraints: The bit rate can be adjusted "on-the-fly" during a call by simple truncation of the "embedded" bitstream at any point of the communication chain such as gateways or other devices combining multiple data streams. This highly flexible bit rate adaptation will avoid network congestion and the dropping of packets that severely impair the overall quality.

 

Tuesday, May 09, 2006 2:26:58 PM (W. Europe Standard Time, UTC+01:00)  #     | 
 Thursday, May 04, 2006

Study Group 17 meeting in Korea, April, gave final approval to the Question on Internationalized Domain Names (IDN) that provides direction and focus to ongoing work. 

The news comes as ITU makes final preparations for the Global Symposium on Promoting the Multilingual Internet it is convening together with UNESCO, 9-11 May. 

ITU-T was mandated to work on IDN at the 2004 World Telecommunication Standardization Assembly in Brazil. IDN will contribute to easier and greater use of the Internet in those countries where the native or official languages are not represented in ASCII characters.

Andrzej Bartosiewicz, representing Poland and acting as Rapporteur for IDNs said: “We have received a number of contributions in this area and have been impressed with the level of interest and the productive nature of discussions. There are a number of organizations working in the field and I believe coordination will be an important focus of any work. The upcoming workshop will be a particularly useful tool for facilitating networking between experts in the field and furthering the study in general.”

Bartosiewicz said that a webpage will be published shortly with news on ITU-T study in the area, as well as related events and technical documents. An official ‘circular letter’ will be sent sent to Member States he said, requesting information about their experiences on the use of IDN. Given the response to this communication SG 17 will be able to better assess the current situation and needs.

 

Thursday, May 04, 2006 9:53:00 AM (W. Europe Standard Time, UTC+01:00)  #     | 

The first meeting of the Focus Group on IPTV (FG IPTV) will take place 10-14 July in Geneva.

The official announcement is here, and a new webpage has gone live detailing how to participate, significant dates and news among other details.

FG IPTV will coordinate and promote the development of global IPTV standards taking into account the existing work of the ITU study groups as well as Standards Developing Organizations, Fora and Consortia. It is open to any individual from a country which is a member of ITU who wishes to contribute to the work.

 

Thursday, May 04, 2006 9:50:19 AM (W. Europe Standard Time, UTC+01:00)  #     | 
 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
-------------------------------------------------------------
 
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)  #     |