Internet Communications Using SIP : Delivering VoIP and Multimedia Services With Session Initiation Protocol {2Nd Ed.}
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We will describe here the essence of the schema for user registration in ENUM, though various business interests and the resulti ...
Figure 4.4 The ENUM functional architecture ENUM and Number Portability The notion of registering blocks of numbers for service ...
■■ Real-time updates—Present DNS technology may introduce minute-long update delays. Current DNS work aims, however, to reduce t ...
A number of interesting issues for implementing SIP call routing using ENUM for number portability are discussed in [18]. New pa ...
PBX Enterprise Voice Network The caller in the enterprise network on the left of Figure 4.5 tries to reach a client with the pho ...
Figure 4.5. Originating calls from a PBX of from the PSTN using ENUM Figure 4.6 Using ENUM for IP-IP communications Switch PSTN ...
We notice here that the caller can also have the benefit of the SIP presence service. In this case, the presence service would n ...
DNS and Security Users of the public DNS data stored in both the Tier 1 and Tier 2 of the ENUM service must be assured that they ...
Data Tampering During the transmission of directory records, valid URIs could be replaced by invalid URIs, in turn causing malic ...
identity of the sender of the data, as well as the identity of the Authori- tative Directory Service operator, is ensured using ...
[7] “Uniform Resource Locators” by T. Berners-Lee et al. RFC 1738, IETF, December 1994. This RFC has the level of a proposed sta ...
81 This chapter provides an overview of the Internet protocol architecture for real-time multimedia. Other key Internet transpor ...
■■ Scaling from point-to-point voice calls to conferences and network broadcasts encompassing millions of users ■■ Empowering en ...
Freshening Up on IP Though most readers are fairly familiar with IP, those interested in the original work may want to review RF ...
Table 5.1 (continued) NAME DOCUMENT SUBJECT Differentiated Services DiffServ Field RFC 2474 Definition of the DiffServ Field in ...
Table 5.1 (continued) NAME DOCUMENT SUBJECT Session Announcement SAP RFC 2974 Session Announcement Protocol Session Invitation S ...
Application-Level Multicast IP network-level multicast has not found a wide deployment on the Internet for a number of technical ...
years to the 0.1 percent to 1.0 percent range, and the delay is close to the speed of light. We believe, therefore, the Internet ...
The description here of the Internet services from a QoS perspective will be useful for reading Chapter 18, “Quality of Service ...
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