The 3G IP Multimedia Subsystem (IMS). Merging the Internet by Gonzalo Camarillo

By Gonzalo Camarillo

Third variation of this best-selling advisor to IMS: totally revised, and up to date with fresh material

The IMS (IP Multimedia Subsystem) is the expertise that merges the web with the mobile international. It makes web applied sciences similar to the internet, e mail, immediate messaging, presence, and videoconferencing to be had approximately all over at any time.

The 3rd variation of this bestselling ebook is totally up-to-date and offers comprehensively increased content material, together with new chapters on emergency calls and on Voice name Continuity (VCC). in addition to this, The 3G IP Multimedia Subsystem (IMS) provides up to date fabric together with a entire photo of consultation Initiation Protocol (SIP) in addition to its applicability to IMS. As lots of the protocols were designed within the IETF, this e-book explains how the IETF built those protocols and describes how those protocols are used...

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Internet-Drafts are temporary documents that expire and cease to exist six months after they have been issued. They can change at any time without backward compatibility issues with existing implementations being taken into consideration. Only when a particular Internet-Draft becomes an RFC can it be considered a stable specification. 3 Types of RFCs The technical documents produced by the IETF are called RFCs. According to the contents of the document there are three main types of RFCs: standards-track RFCs;non-standards-track RFCs;BCP (Best Current Practice) RFCs.

When this happens the IMS standardization bodies contact the standardization body developing Internet protocols to work together on a solution. 5. 1 all the standardization bodies involved in IMS development. We need to know who is who and which functions of the IMS each of them performs. 1 Relations between IMS-related Standardization Bodies The ITU (International Telecommunication Union) IMT-2000 (International Mobile Telecommunications-2000) is the global standard for 3G networks. IMT-2000 is the result of the collaboration between different standards bodies.

Cn/english 3. org/ 4. org/ 5. kr/English 6. jp/e 3GPP was originally chartered to develop globally applicable technical specifications and technical reports for a third generation mobile system based on GSM (Global System for Mobile communication). The scope has been reinforced to include maintenance and development of GSM specifications, including the supported and evolved radio networks, technologies, and packet access technologies. Besides the organizational partners, market representation partners provide the partnership with market requirements.

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