CONTENTS:

• Programmable SIP Application Servers for Next Generation Networks
• SIPiT 15 Taiwan
• SIP の概要
• 了解 SIP
• New book: The 3G IP Multimedia Subsystem: Merging the Internet and the Cellular Worlds
• SIP Forum Releases SIP Test Framework

REGULAR FEATURES:

• New developers resources added to The SIP Center
• This month's new SIP Products showcased in the Virtual SIP Trade Show
• New and popular titles in The SIP Center Bookstore
• Events diary
• SIP Center Principal sponsors
• Sponsorship information
• Unsubscribe and copyright info

 

Wise words

What is now proved was once impossible.
- William Blake.

 

Programmable SIP Application Servers for Next Generation Networks
Service Creation and Service Delivery All in One

A new whitepaper from Ubiquity Software Corporation

Abstract: The adoption of open, flexible, standards-based service creation environments (SCEs) is critical for the rapid introduction of new services and business models into emerging Next Generation Networks. These SCEs in turn will need to interact with a variety of the underlying building blocks of these new services. Out of all of these, the most important is Session Initiation Protocol (SIP), already in wide scale deployment around the world supporting Voice over IP hosted services, enterprise IP PBX systems and client/server desktop applications, as well as playing a vital part in the Internet Multimedia Subsystem (IMS) architectures of both fixed and mobile service providers.

This document explains the central role that SIP Application Servers and SIP Servlet-based Service Creation Environments have in supporting a wide range of new services and new communities of interaction.

http://www.sipcenter.com/goto/ServiceCreationDelivery  

SIPiT 15 Taiwan

For the first time ever SiPit takes place in Asia. The Industrial Technology Research Institute of Taiwan (ITRI) is proud to be the host and invites you to the 15th SiPit event.

August 23 - 27, 2004, Taipei, Taiwan.
Registration and further information >>>

亚洲语音 － IP厂家邀请参加“主要相互运用”活动.
作为亚洲最早的SIP,提供其他厂家的产品及试验机会。

アジア ボイス－オーバー IP ベンダー はメージャー 相互運用 イベントに招待されます。
アジア最初のSIPとして、他のベンダとの製品テストのチャンスを提供します。

SIPITs, or Session Initiation Protocol Interoperability Tests, are week-long events where companies bring their SIP implementations to ensure they work together. The SIPITs are open to anyone with a working SIP implementation.
Currently, the SIPITs are held twice a year. Different companies or organizations host each event, and each host chooses the venue.
The goal of the events is to refine both the protocol and its implementations. The SIPITs are a driving force shaping SIP into a globally interoperable protocol for real time Internet communication services. For more information about the SIPit events, visit http://www.sipit.net. 

 

 

SIPの概要

成熟期を迎えた、今最も注・br> ﾚを集める通信プロトコル

はじめに

新世代のサービス

発展の経緯

SIPの利点： オープン性と拡張性を備えた Web 型の通信

SIP セッションの分析

異なるドメイン間での SIP セッションの確立

SIP入門    Network Technology Series
ゴンザロ カマリロ (著), Gonzalo Camarillo (原著), 新堀 幸一 (翻訳), 西尾 知子 (翻訳)

基礎からわかるTCP/IP SIPによるVoIPプログラミング―Linux対応

マスタリングTCP/IP SIP編
Henry Sinnreich (著), Alan B. Johnston (著), 阪口 克彦 (翻訳)

 

了解 SIP

当今最热门的通信协议已经发展成熟

页面跳转

介绍

新一代的服务

历史回顾

SIP 的优点：类似 Web 的可扩展开放通信

SIP 会话构成

 

New book: The 3G IP Multimedia Subsystem: Merging the Internet and the Cellular Worlds

Written by SIP experts Gonzalo Camarillo and Miguel Garcia-Martin, The 3G IP Multimedia Subsystem (IMS) describes the new wireless multimedia domain specified by 3GPP and 3GPP2 that will bring SIP to millions of 3G terminals. This book describes the IMS by analyzing the protocols that were developed by the IETF and then adopted by 3GPP and 3GPP2. Each technology is first presented as it was designed by the IETF, and then as it is used in the IMS.

This book devotes a whole chapter to the basic concepts of SIP and its extensions and another one to the use of SIP in the IMS. Additionally, this book explores SIP-based services such as presence, instant messaging, and push-to-talk. This book also explores, by first introducing the Internet technology and then its usage in the IMS, other concepts in addition to SIP, such as Authentication, Authorization and Accounting (AAA), Security, Quality of Service, Media Encoding, and Media Transport.

Order from Amazon.com >>>

  

 

SIP Forum Releases SIP Test Framework

In response to demand for SIP (Session Initiation Protocol) device interoperability, the SIP Forum (www.sipforum.org) announces completion and release of its first SIP test suite, called the SIP Forum Test Framework.

This SIP Forum Test Framework (SFTF) v1.0, is being released as open source. In order to obtain future open-source community support for this project for the future, the SIP Forum has elected to host the project at SIPfoundry.org's Web site.

 

~~~ <<< SIP INFORMER REGULAR FEATURES >>> ~~~

 

New developers resources added to The SIP Center

PROTOS Test-Suite: c07-sip
The purpose of this test-suite is to evaluate implementation level security and robustness of Session Initiation Protocol (SIP) implementations.

iLBC Freeware
iLBC (internet Low Bitrate Codec) is a FREE speech codec suitable for robust voice communication over IP. The codec is designed for narrow band speech and results in a payload bit rate of 13.33 kbit/s with an encoding frame length of 30 ms and 15.20 kbps with an encoding length of 20 ms. The iLBC codec enables graceful speech quality degradation in the case of lost frames, which occurs in connection with lost or delayed IP packets.

GIPS iLBC
GIPS iLBC a royalty free, low-bit rate codec with high packet loss robustness. iLBC delivers better speech quality than G.729A and G.723.1, under any conditions and offers substantially better quality when networks are congested and with the presence of packet loss. The iLBC codec is currently a work item of the IETF audio/video transport Working Group as a part of IETF’s standardization efforts.

A new online book on SIP for core developers, System engineers and researchers (MS Word format)
The annotated version of the SIP RFC (3261) - This online book enables the core developer to have a positive friendly experience with the main SIP RFC (3261). The SIP RFC is well written, but naturally the authors could not fit in that large and detailed document (269 pages) all the examples and explanations, which may have greatly assisted developers when going over the material. In addition the IETF constraint of the need to generate pure text (ASCII) portable documents impaired the distinguished authors from being able to use cross references, emphasized text, external links to other RFCs, Footnotes etc. - The annotated version of the SIP RFC (3261) attempts to correct that situation. "It has hundreds of elaborating footnotes with intent to reach the number of 2000 in future revisions". With the MS-Word web option ON you can go back and forth between all associated sections. That makes the SIP RFC a powerful working tool.

More developers tools and resources >>>

 

Events diary

SIPit 15
August 23 - 27, Grand Hyatt Taipei.

INTERNET TELEPHONY Conference & Expo Fall 2004
October 4-7, Los Angeles, CA.

SIP Workshop (part of INTERNET TELEPHONY show)
October 6-7, Los Angeles, CA.

Voice on the Net Conference and Expo
October 18-21, Boston MA.

SIMPLEt
November 2004, Redmond, Washington, USA.

IIR-Telecoms Premium Messaging 2004
8-11 November, Brussels, Belgium.

IIR’s VoIP World Congress 2004
15-17 November, Nice, France.

IIR - 3G World Congress & Exhibition 2004
November 15-19, Hong Kong.

IIR Push to Talk World Summit
29 Nov - 2 Dec, Rome, Italy.

International SIP 2005: Amplifying the Success of 2004
January 25 to 28, 2005, Paris.

More events listings >>>

 

New SIP Products showcased in the Virtual SIP Trade Show

Here are the changes and additions to SIP Center products section this month. Updated daily and with more than 1,000 company listings, the Virtual SIP Trade show is the most comprehensive SIP products directory on the web. You'll find further information about these companies and their SIP products at the Virtual SIP Trade Show:

GASP! Where have all the new product listings gone?...

Click here

 

 

New and popular whitepapers in the SIP Center whitepaper library

NEW: Service Creation and Service Delivery All In One - Programmable SIP Application Servers For Next Generation Networks

Understanding SIP - Today's Hottest Communications Protocol Comes of Age

Understanding SIP Servers

SIP: Protocol Overview

SIP Enhanced Mobile Network Services

SIP Center whitepaper library

SIP Center Bookstore >>>

 

SIP Center Principal Sponsors

3Com, ACE*COMM, AG Projects, Convedia, Data Connection, Ericsson, Hewlett Packard, Hotsip, Interactive Intelligence, Lucent Technologies, Mitel, NetNumber, Netrake, NMS Communications, Nortel Networks, RADVISION, Ridgeway Systems and Software, Siemens, Sun Microsystems and Ubiquity Software.

Sponsors page >>>