Chapter 24 - Conferencing in the IMS pptx

... 502 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 ... produced within the XCON working group, the IMS conferencing service only uses BFCP (specified in RFC 4582 [106]). In the future, as the work in the XCON w...

Ngày tải lên: 01/08/2014, 17:21

... Ltd. ISBN: 97 8- 0- 47 0- 5166 2- 1 302 CHAPTER 12. SECURITY IN THE IMS Security-Client: ipsec-3gpp; alg=hmac-sha- 1-9 6; ealg=aes-cbc; spi-c=23456789; spi-s=12345678; port-c =246 8; port-s=1357 Figure ... this P-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-CS...

Ngày tải lên: 01/08/2014, 17:21

... Primary-Event-Charging-Function-Name • Secondary-Event-Charging-Function-Name • Primary-Charging-Collection-Function-Name • Secondary-Charging-Collection-Function-Name. The User-Authorization-Type AVP indicates ... S-CSCF in the mentioned AVPs, the S-CSCF inserts these keys as parameters of the Digest scheme in the SIP WWW-Authenticate header field, and then the P-CSCF removes...

Ngày tải lên: 01/08/2014, 17:21

... possess unique, one-of-a-kind creativity and out-of -the- box thinking skills. “There is nothing that is a more certain sign of insanity than to do the same thing over and over and expect the results ... getting more and more creative when it comes to providing their employees with uniquely-their-own incen- tives and morale boosters that contribute to an ever-changing, excit- ing, and mot...

Ngày tải lên: 24/01/2014, 00:20

... (2) to the I-CSCF in the presentity’s network. 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...

Ngày tải lên: 01/08/2014, 17:21

... the X-3GPP-Intended-Identity header field. Then it inspects the Request-URI, d etermines, Chapter 18 Service 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 that is po...

Ngày tải lên: 01/08/2014, 17:21

... 480 CHAPTER 22. THE INSTANT MESSAGING SERVICE IN THE IMS IMS Terminal #1 (1) INVITE P-CSCF (18) 180 Ringing P-CSCF (3) INVITE (17) 180 Ringing (19) 180 Ringing S-CSCF S-CSCF (7) Diameter LIR (8) ... Trying (11) INVITE (12) 100 Trying (13) INVITE (14) 100 Trying Originating Visited Network Originating Home Network Terminating Home Network Terminating Visited Network (16) 180 Ringing...

Ngày tải lên: 01/08/2014, 17:21

... do not expect the IMS to adopt them in the immediate future. 10.3 Reservations by the Terminals Terminals use the SRF information received in session descriptions to determine the number of resource ... semantics The P-CSCF adds a=mid and a=group:SRF lines to the session descriptions before relaying them to the terminals (as d escribed in 3GPP TS 24. 229 [37]). The...

Ngày tải lên: 01/08/2014, 17:21

... SETUP 141 P-Access-Network-Info: 3GPP-UTRAN-TDD; utran-cell-id-3gpp =244 50289A3299239 Figure 5 .24: The P-Access-Network-Info header field (2) The identity of the radio cell where the IMS terminal is ... originating side. The IMS ter minal inserts a P-Access-Network-Info header field in a similar way to that th e originating terminal used to insert the same header field in...

Ngày tải lên: 01/08/2014, 17:21

... by: – Expanding the market – Realizing economies of scale – Realizing location economies – Leveraging the skills of global subsidiaries “Remember the finish line is at the end of the race. Don’t ... many multinational companies is based not just on the goods and services they sell, but upon the distinctive competencies that underlie their production and marketing • Globalizat...

Ngày tải lên: 06/11/2013, 17:15