Chapter 5 - Session Control in the IMS pps
Chapter 5 - Session Control in the IMS pps
... ISBN: 97 8- 0- 47 0- 51 66 2- 1144 CHAPTER 5. SESSION CONTROL IN THE IMS Content-Type: application/sdpContent-Length: 56 7v=0o =- 1073 055 600 1073 055 600 IN IP6 1080::8:800:200C:417As =- c =IN IP6 1080::8:800:200C:417At=0 ... BASIC SESSION SETUP141P-Access-Network-Info: 3GPP-UTRAN-TDD;utran-cell-id-3gpp=24 450 289A3299239Figure 5. 24: The P-Access-Network-Info header field(2) The identity of the radio cell where the IMS ... originating side. The IMS ter minal inserts aP-Access-Network-Info header field in a similar way to that th e originating terminal usedto insert the same header field in the INVITE request. The terminal...
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Chapter 4 - Session Control on the Internet pps
... from another proxy and routes it toward its destination.102 CHAPTER 4. SESSION CONTROL ON THE INTERNETFigure 4 .54 : Endpoint-independent mappingFigure 4 .55 : Address-dependent mapping4. 15. EVENT ... two parts: session- levelinformation and media-level information. The session- level information applies to the whole session and comes before the m= lines. In our example, the first five lines correspond ... end-to-end (by the user agents) and not by the proxy servers in the path.Still, all proxy servers in the path handle the message, as shown in Figure 4.32.96 CHAPTER 4. SESSION CONTROL ON THE INTERNET4.19...
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Erosion control in the tropics - Part 3 pps
... crop on the field becomes clear too. In the first place the leaves reduce the force of the rain impact. Secondly the plants re-duce the speed of the flowing water. At the same time, a crop increases ... of the falling raindrops is determined by the size and the falling velocity of the raindrop. Both these factors are of course closely related to the type of rainstorm from which the drop-lets ... reduce the force of the rain impact; that means protecting the soil against direct force of rain. The erosion process 173 The erosion process Some understanding of the way in which the erosion...
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Erosion control in the tropics - Part 5 pptx
... and at retaining the rain water. ? Minimum tillage, mulching and the use of a cover crops serve to protect the soil against the force of the rainfall, at the same time maintaining the soil fertility ... guideline for the width of strips Slope of Width of 0 - 2% 40 - 50 m 2 - 4% 30 - 40 m > 4% 15 - 30 m in very humid areas 15 - 30 m This shows that the width of the strip also depends on the ... grassland influence arable farm-ing. Think of the cattle pastures where manure will again benefit the soil. The felling of trees and the planting of trees also strongly influence the cropping system....
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Erosion control in the tropics - Part 9 ppsx
... carry on the works and maintain them, it is essential that they see their benefit and feel re-sponsible for them too. The people should feel that the project belongs Conditions for the success ... concerned or the well-intentioned development worker ei-ther. Sometimes the causes can only be tackled by political influence among the people themselves, a process in which you, as a develop-ment ... Erosion control in the tropics 76 9.2 Awareness Only if people appreciate the usefulness of the operations to be carried out, will they be inclined to take them up themselves. They should...
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Chapter 20 - The Presence Service in the IMS pdf
... (2) to the I-CSCF in the presentity’snetwork. The I-CSCF queries the HSS using the Diameter protocol, (3), (4) in Figure 20 .5, to locate the S-CSCF allocated to the presentity and forwards the ... with the Service configu-ration offered by the XDM architecture. The IMS terminal plays the role of both a watcher´ıa- M ar t´ın The 3G IP Multimedia Subsystem (IMS) : Merging the Internet and the ... when they occur. The high-level watcher information flow is presented in Figure 20.6. For the sakeof clarity, the flow assumes that the PS and the Presence XDMS are co-located. The IMS terminal...
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Chapter 18 - Service Configuration in the IMS pot
... the X-3GPP-Intended-Identity header field. Then it inspects the Request-URI, d etermines, Chapter 18Service Configuration in the IMS Chapter 17 provided a description of the protocols at the user’s disposal ... identified in HTTP, thus, excluding the host name. Of relevance in the HTTP GET request is the inclusion of an X-3GPP-Intended-Identity header field thatis populated with the identity that the user ... is included in the HTTP POST request (1), and in the target parameter of the Request-URI of the same HTTP POST request (1). The reason forencoding the r equest in two places is twofold: on the...
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Chapter 24 - Conferencing in the IMS pptx
... 50 2 CHAPTER 24. CONFERENCING IN THE IMS domain. The I-CSCF of the terminating domain consults the HSS (7) in order to resolve the PSI (i.e., the conference URI). The HSS provides the I-CSCF ... producedwithin the XCON working group, the IMS conferencing service only uses BFCP (specified in RFC 458 2 [106]). In the future, as the work in the XCON working group progresses, the IMS conferencing ... services. Chapter 24Conferencing in the IMS In Chapter 23, we introduced the basic technologies and architectures developed by the IETF in the conferencing area. In this chapter, we discuss how those...
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Chapter 22 - The Instant Messaging Service in the IMS ppt
... 480 CHAPTER 22. THE INSTANT MESSAGING SERVICE IN THE IMS IMSTerminal #1(1) INVITEP-CSCF(18) 180RingingP-CSCF(3) INVITE(17) 180 Ringing(19) 180RingingS-CSCF S-CSCF(7) DiameterLIR(8) ... escribed in 3GPP TS 24.247 [ 45] . Session- based instant messaging was not included in Release 5 because at the time 3GPP closed22.3. SESSION- BASED INSTANT MESSAGING IN THE IMS 479 IMS Terminal(1) ... feature in Section 21 .5. 22.3 Session- based Instant Messaging in the IMS The session- based instant messaging service was introduced in Release 6 of the 3GPP speci-fications. The detailed p rotocol specification...
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Chapter 12 - Security in the IMS docx
... Ltd. ISBN: 97 8- 0- 47 0- 51 66 2- 1302 CHAPTER 12. SECURITY IN THE IMS Security-Client: ipsec-3gpp; alg=hmac-sha- 1-9 6; ealg=aes-cbc;spi-c=23 456 789; spi-s=123 456 78;port-c=2468; port-s=1 357 Figure ... thisP-Access-Network-Info header field and an existing one generated b y the IMS terminal, the P-CSCF also includes a network-provided parameter. Then the P-CSCF adds thisP-Access-Network-Info header field to the ... of the line. In NASS -IMS bundled authentication, the “logical” line is authenticated, but not the user or the IMS terminal. This u nveils some of the limitations of the NASS -IMS bundledauthentication:...
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