Evolution of value-added services of fixed telephone network of _2512

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Evolution of the fixed telephone network of value-added services
 
 
Value-added telecom services is the use of public network infrastructure to provide telecommunications and information services business. Fixed-line value-added services currently provided in the form mainly through the intelligent network, voice platform, SMS platform to provide users with services, in the form of value-added services are: intelligent services, voice services, fixed line SMS. Ability to service provision is mainly based on the existing network capacity and user terminal capability, which offers flexible billing capabilities, the ability to control the call process, the ability to provide information. Provide the multimedia business, slightly less intelligent side also.    Characteristics of value-added services value-added services and information most important feature is the combination of the information provided in the form of diversified and personalized requirements of new value-added services with the following characteristics:  business multimedia : simple voice communication services in the traditional dominant position in the communication network gradually decreased gradually increase the proportion of data services such as SMS, Internet, greeting cards, personalized information, VOD, TV programs. The other video communications services, such as fixed-line communications will be the next killer application. This business in the country has a certain demand, especially as part of a large number of high-income people, video communication can not only meet their high consumption of desire, to satisfy curiosity, but also can greatly improve the ARPU value, driving bandwidth requirements. Technically, as mentioned earlier, adequate bandwidth, fiber to the home, multimedia terminals, such as the development trend of network convergence, to prop up the future of video communications-based multimedia communications (information) services.  Personalized service: the future business direction will be to the individual users to customize their favorite business and design to provide ways for your business, selected personal and human-machine interface terminal, select the type of business . In short, the business provides to the user before the form will not be stereotyped, telecom services may no longer just a demand, but a way to enjoy life.  Business intelligence: mobile positioning technology can provide users with anytime, anywhere, and even casual business. For example, when users approach a mall, the mall offers a discount in the message displayed in the user's mobile phone. Location-based technology, similar to the kind of  Business diversification: soft-switching technology allows business developers can design standards-based API interfaces independently, future business development, upgrade, and become very easy. As more and more developers enter the market of business, types of business will be very rich, attractive business will continue to increase.  In front of three major forms for the business should have a variety of features, the last point in the business of providing capacity requirements.   Evolutionary step in fixed-line value-added integration services provided : This is the first step in the evolution of the business, the diversity of end-users have led to the production of integrated business needs, the main business: One-pass, unity Account class, mixed group CENTREX and so on. The main difficulty lies in the business to achieve business to achieve a platform that can simultaneously access the fixed telephone network user's data and PHS user data. Softswitch  of value-added services on fixed  softswitch in C4, C5 level, the introduction of soft-switching has not yet conclusive, there is now a view: the fixed entry point for operators to introduce softswitch is possible that the introduction of the first level in tandem softswitch and gateway access through the end office switch, with the back end office network access gateway directly replace these end offices, extended C5 softswitch applications. This article is based on the C5 level, the introduction of softswitch. With the introduction of softswitch, bringing the fixed telephone network to packet technology, the evolution of multimedia, SIP termination, SIP softphone, etc. The introduction of the new terminal, the realization of multimedia services become more efficient, while making the user's roaming fixed possible also brought in business NGN business. NGN business mainly refers to the integration of unified communications on packet networks, information, e-commerce and other business transactions to meet the diverse needs of individual businesses, based on the inheritance and interoperability between a variety of business networks in the whole net quickly provide new voice, data, image fusion services, NGN services including:

  session of business: IM (Instant Messaging Instant Messaging) service, video telephony, multimedia sessions business meeting of the Routing Policy  Personal Business: multimedia conferencing services, Web conferencing services, real-time information on the electronic remote classroom  type business: information exchange between man and man made (point to point, multipoint, multi- point to point, text, images, sound and video information)  distribution type business: video on demand VOD, Digital Pay TV, E-Learning  Search Type business: information services, navigation information, basic positioning service, interactive type of business  for existing PSTN, ISDN and intelligent network services, the softswitch will retain the traditional business base and enable business to achieve a more full-featured, full efficiency. The introduction of SIP softswitch application server, Parlay API application that allows third-party service providers to develop services for the fixed telephone network to enable the business to provide more diverse.   IMS mechanism of the introduction of fixed  IMS (IP Multimedia Subsystem) is in the Release5 version of 3GPP IP multimedia services for support subsystem, and its central feature is the use of SIP and has nothing to do with the access of the current 2G and 3G IMS to support mobile access, but also can not support the fixed access. In the development trend of network convergence, 3GPP, ETSI, and ITU-T are working on IMS-based network integration program is intended to enable IMS as a common platform based on SIP session, while supporting a variety of fixed and mobile access. With the gradual evolution of the fixed telephone network, fixed telephone network gradually to IP, mobile is evolving,You are not allowed to view links. Register or Login, and IMS systems support a variety of fixed and mobile access, to better achieve the fixed network and mobile network integration.  IMS implementation in the personal business networks with more user-oriented than traditional methods. With IMS, users can dynamically associated, user data-centric business layer independence, and the standard access point CSCF access to personal business. Log in or the system receives the user sent from the user's request, the CSCF will dynamically allocate resources to the user. Roaming users to visit all places of business by the P-CSCF route to the attribution, the attribution to the S-CSCF to control user subscription data business and the business according to the user to this site triggers the application of AS or a third party in order to protect the business, consistency, simplicity, allowing users anywhere access, the use of the access method can enjoy the same as in the attribution of business experience. IMS user equipment business needs with IMS / SIP client (including GUI, business logic, routing and lookup discovery), to be able to communicate with the network side server. Used in the user terminal IMS / SIP agreement means that this architecture can be a real end to end across the structure.  Using IMS system to achieve the integration of fixed and mobile networks, roaming for broadband users, the standardization of the way authentication is still need further exploration.  Business trend today is towards a single integrated business network of multi-service network, fixed telephone network of value-added services are gradually moving toward integration, toward broadband, evolving in the direction of movement.