How to extend long, the Ministry of Information Industry Telecommunications Transportation, China Tel Laboratory, with the decline in voice business, and video multimedia business are gradually become new growth points of telecom operations. However, the traditional industrial computer-based conference TV system is bulky, complex, simple function, low line rental fees, and equipment prices are expensive, and the video service will come to enterprises and the public, and the market calls for new integrated video communication technology. The development of video technology is in 2000, accompanied by my country's telecommunications system reform and institutional restructuring, domestic telecom operators have an extraordinary force, increase network construction and business operation. Different in the past, the operational industry is more concerned about the business of the network more attention to the network, and promoting telecommunications construction is transformed from "mass quality" to "mass quality" and finding new business growth points to become the development of telecommunications enterprises. The rise and publicization of video services provide an excellent opportunity for telecommunications companies to expand business space. Since the introduction of the first set of conference television systems in my country in 1993, the video service has developed rapidly in just a few years. Especially in the past two years, with the rich, access costs, more and more industries, enterprises began to use video technology to carry out distance teaching, telemedicine, remote monitoring, different land governors, etc. Application. It is not difficult to foresee that video services will usher in a larger development in the near future. Publicization - How should telecommunications companies teach opportunities to grasp opportunities, play an existing network resource advantage, launch this huge potential demand? Since last year, China Telecom has begun to vigorously promote the ISDN "1-wire" business in the country, providing users with higher bandwidth digital connection services. The relevant leaders of the Ministry of Information Industry, experts have repeatedly emphasized that they must actively carry out video services while meeting the business needs of dial-up Internet access, and promote the promotion of ISDN. At the same time, the development of ISDN has greatly stimulated the development of remote meetings, distance education, telemedicine, and visual calls. Early video services were mainly for the administrative meeting of government agencies, and then, in some special network industries with line resources, the construction of a specialized conference television system was also launched. However, video services have not yet been going to ordinary enterprises and public users, and have not yet become a powerful support for telecom operations. First of all, for telecom operators, the video service does not achieve publicized operations. The income brought by the company also only stays on the line resources, and cannot fully realize network value-added; secondly, for enterprises and public users, high video systems Construction and operation maintenance cost makes video services become "noble consumption", which restricts the wide use of video services. How to grasp the opportunity for development video services through technology, business innovation? Operational video business operations to publicly is undoubtedly an effective way. The public video service is a new operational idea that is different from the traditional conference TV business. Similar to the current telephone exchange network, the current telephone exchange network is a digital exchange network such as ripe ISDN, which is constructed by the telecommunications enterprise, and the user only needs to purchase terminals. Access to the network to get a video service. Public video business will avoid huge equipment repeated investment, saving users a large number of network construction, maintenance costs, and helps the further development of video services. For telecommunications companies, the video service can be packed to society, which in turn implements an independent tariff policy to realize real network value added. More importantly, the development of public video services will help telecom companies to win more customers (these users are creating high-volume users). As the market size expands and cost reduction, public video services will gradually extend to the enterprise-class user market, and even gradually cover home users. The development of publicized video services is not only necessary, but also has considerable urgency.
The seven trend of video network technology, the development trend of video business, a series of problems and contradictions in traditional video equipment, technology: First, the system capacity of traditional video equipment is less, dozens of ports have Meeting the public application is more difficult; secondly, the video equipment based on the industrial computer platform, allows video services to be difficult to handle, stability problems; third, traditional equipment is inconvenient, billing, appointment, etc. Operating function, not perfect, Operating efficiency is poor. Therefore, a higher level requirement for video equipment, video technology is facing new development trends: one of the trends, system reliability needs to be further improved. If the video service has achieved publicization, the telecommunications department must promise to ensure the quality of service, and should provide users all day to meet the user's business needs at any time. At this time, the stability of the video exchange platform must pay full. Traditional MCU based on industrial computer structure, its stability cannot achieve telecom operational level; only the platform equipment of the real-time operating system using full exchange processing, PSOS and other real-time operating systems can achieve 24 hours of continuous operation, and Provide stability of telecom operation grade. Trend, system capacity needs to be improved. Once the public video service develops, the demand for users will increase rapidly. The port capacity of traditional equipment must achieve an increase in magnitude, with powerful functions such as multi-meeting management, allowing for a certain convergence ratio to thousands of users. . Trend, network adaptability needs to be enhanced. The most critical operation of video services is to require the system to enable access to different types of different types of devices, which means that the system must have a variety of protocols and full-rate adaptation features. The speech protocol G.711, G.722, G.728 adapted H.263, H.261 image adaptation and different rates of equipment, will be a public user to achieve access to various systems The essential. Trend, must have powerful information security guarantees. Information has become important strategic resources, information security is an important security element. This requires the video service system to provide reliable fault tolerance and anti-commencement, and you must have a complete encryption and authentication function. Trend 5, providing a complete media data business function. Video services are not just a video, audio conference, and media data business features are also essential for video services. T.120 Standard for video conferencing systems, data conferencing features, multi-point electronic self-board (T.126), multi-point file transfer (T.127) multi-purpose application (T.128), etc., Enable companies and individual users to truly implement face-to-face communication and collaboration. Trend, meet the operating system features. Once the public video service is not intended to achieve operations for different users, the convenient reservation function and flexible billing will be indispensable, users can make a meeting time, on time to meet meetings, to carry out remote teaching, and end the distance medical treatment. After the system automatically charges, periodically settlement, which will bring more attractions to users. Trend seventh, easy to operate can be maintained. In future public video services, users will no longer build and maintain MCUs. They are facing a convenient, miniaturized portable video terminal, as long as they open the terminal at the specified time, join the meeting, no longer need professional Or semi-professional operator; at the same time, the system's maintenance will also not need to organize special maintenance power, and the operational department can troubleshoot in time through remote maintenance. As a new profit growth point in communication, the public video service will help improve service quality and business functions to users, especially group users, so that they are willing and more contribute more, and then increase telecommunications. Enterprise business income and realize network value added. Under the promotion of technology, demand and operation, public video business will will usher in a new future.
"Viewpoint" integrated video platform based on the needs of telecommunications video services, Huawei launches a new generation of all-handed video products - "Viewpoint" ViewPoint 8000 integrated video service platform. "Viewpoint" can be convenient to form an integrated video service network as the main, compatible with the E1 / V.35 line and IP access. The development of publicized video services not only increases ISDN and other data exchange networks, which greatly promotes the promotion of data services such as ISDN, and realizes the value added and more important in data networks such as ISDN. It is the integrated video network to provide a platform for telecom operators to operate video services, making video services broad application in all walks of life. "Viewpoint" ViewPoint 8000 integrated video service platform includes: ViewPoint 8620 integrated video switching platform and ViewPoint 8020 video terminal. The ViewPoint 8620 integrated video exchange platform is a world-level telecommunications-level video exchange device with a high reliability full exchange architecture. Support H.320, T.120 protocol and access to H.323 system, large capacity design, support mixed interface networking, support 12 groups (10 display modes per group) multi-screen, 26 protocol / rate adaptation. In terms of system performance, the system provides the stability of telecommunication network. The main control system implements all public function module hot backups for dual-stand automatic switching, Chair, T.120, image exchange, clock, ISDN call, etc., ensuring that the equipment is unbounded for users for long-term months; at the same time, the system provides unique The network is functional, exclusive supporting special service number access, making video service applications easier; large-capacity access capability, 128 ISDN / 96 V.35 / 64 E1 / 1 fiber 155m line interface, Support access H.323 (IP) conference television system, adapting to the demand for video business; the application of public video service is increasingly widely wide, the system is not only with a graded group network, but also provides the ability of the module superposition, decentralized networking, Supporting the continuous optimization and sustainable development of video networks. In terms of business function, ViewPoint 8620 provides a wealth of digital multi-screen, implementing 12 groups (10 modes per group) digital multi-screen display and broadcast function; facing video service publicization, the system provides flexible virtual conference function, powerful Multi-protocol, full rate adaptation function, 26 speed (rate range: 64kbps-2Mbps) adaptation, H.261 / H.263 video protocol, G.711 / G.722 / G.728 audio protocol Adapters, allowing access to different speeds of different protocols, which greatly facilitates the construction of public video network, which is conducive to extending video services to a wider customer base. Operating management, the system also provides a wealth of operational business features, exclusive business management system, achieving flexible and practical video service reservations, meeting access authentication, and telecommunications-level billing systems, network operating systems and network management systems, support The system remote maintenance has effectively promoted the publicization of video services. ViewPoint 8020 is a new generation of portable full-featured video terminals launched by Huawei, using compact structural design, beautiful appearance, simple installation, convenient to use.
In order to meet the application needs of users of different environments, the ViewPoint 8020 implements a variety of line interface integration, while providing EI / V.35 / ISDN (1-4 BRI, up to 512Kbps) / LAN multi-line interface to adapt to various transmission Network; simultaneously support multi-video protocol (H.261 / H.263), multi-audio protocol (G.711 / G.722 / G.728), full rate (64kbps-2Mbps) adaptation, users can use anytime, anywhere Access to the public video network. For multi-conference applications, the chairman terminals of each group can be flexibly set and broadcast "multi-screen" of 10 modes, and implement virtual venue features. The equipment also has a complete T.120 data conference function that enables real-time transmission of various electronic texts, electronic images, providing electronic whiteboard, data sharing, file transfer, etc., greatly enhances system business capabilities.
The IP TV conferencing program is mainly due to the following reasons for the TV conference: the TV conference standard is gradually improved, the fields of network connection are getting wider and wider, the network bandwidth is gradually increased, and the network mode is transformed by shared And network service quality (QoS) is enhanced, and due to the development of IP technology and the further improvement of the H.323 standard, the conference TV is almost all under the H.323 standard. Here is the program of the Picturetel IP TV conference. The TV conference is generally composed of a conference TV terminal, a gateway, a gateway, a multi-point controller, a multi-point processor, and a multi-point control unit. Its approach includes point-to-point, concentrated multi-point, distributed multi-point, Hybrid multi-point, Mixed multi-point and broadcasting, etc., and can be applied to network environments such as Ethernet, fast Ethernet, token network, FDDI, and ATM. Picturetel 240 Gateway Picturetel 240 Gateway provides seamless connection for IP and ISDN network systems. The main features are as follows: scalability: Supports a variety of networks, video, audio, and data transfer rates from 112 kbps to 384 kbps. When 128kbps, 6 TV conferences can be supported at the same time; 384kpbs can support 3 conference televisions at the same time. Flexibility: Run in the Ethernet area network, range from 10MB to 100MB. High quality video and audio: support H.261 video standard high-definition image and G.711, G.722 audio algorithm high quality sound. Connectivity: Detached multi-point TV conference between IP networks and ISDNs. The Picturetel 240 supports direct connections to the Pictn interface through the ISDN interface with the Picturetel ISDN multipoint server Montage and PRISM. Interoperability: Picturetel 240 supports other manufacturers in accordance with H.323 IP conference television systems and ISDN conference TV products that meet H.320 standards. The 4.0 version of Picturetel 140 LiveManager Picturetel 140 enables network administrators to effectively control their online video communications, thereby ensuring the commercial interests of conference television, not the burden on the network. Its main features are as follows: Control: The network administrator decides the number of online TV conferences and the bandwidth occupied by video communications. Easily use: Users can connect anyone on the enterprise online without remembering the lengthy IP address. Remote Access: Administrators can remotely control the status of the video call, apply a web browser interface, or remote configuration for the Picturetel 140. Picturetel 330 2.0 version of the Picturetel 330 network conference multi-point server software further expands the performance of the first-class IP server, and the PictureTetel 330 enables high quality video, audio, and data transmission effects, making multiple users through the enterprise internal network or the Internet, in virtual Meeting in the conference room. Picturetel Prostart Picturetel provides a comprehensive global service for its IP products, including Picturetel Prostart for IP users with specialized services. Picturetel Prostart is designed for special needs of enterprise network users, from network analysis, Picturetel conference television system installation, to end user training and support. Picturetel's H.323 standard meeting product kit includes: Livelan - a complete TV conference client based on TCP / IP; LiveManager - complies with H.323 network management standards for meeting management applications; LiveGateway - H.320 to H .323 standard TV conference gateway; Picturetel 330 NetConference multi-point conferencing server software, it enables users to meet H.323 standards, commercial quality, commercial quality, business quality, in their existing enterprise IP facilities or any IP network Sound, video and data sharing.
These products provide a comprehensive, effective, high quality, effective multimedia TV conference solution. The Picturetel's H.323 solution affects these networks and provides more network selection for high quality conference TV. Livelan is running in enterprise IP facilities, now also supports ATM. In addition, the LiveLan combines with LiveGateway, which can provide ISDN and IP-world connections for multi-network users. This complete solution pushes desktop TV conference to higher quality, transparency, reliability, and wider range. Application Reference Reference Public Video Business Test Network has long-term adherence to the development of business major customers and promoting ISDN businesses for a long time, in the introduction of new technologies, and achieve significant results in network digging potential. As the phone market is getting ripe, video service has become the future operation of the province's telecom future management. In early 2000, through the scientific investigation and full argumentation of the business market, the "viewpoint" ViewPoint 8000 was used to carry out the first experiment of the first public video operation network to promote the value added and ISDN business promotion of existing networks. The operational test network uses 4 viewpoint 8620 video switches, which are placed in 4 large cities in the province. The total capacity of 192 ISDN / 384K ports, 24 E1 interfaces, all ISDN ports adopt a certain convergence ratio for publicization video Operation, E1 interface is used to access the original 2M system. 25 sets of ViewPoint 8020 video terminals are used inside the telecommunications, and video service users buy video terminals themselves, and access the network through ISDN. The video exchange network uses a distributed networking, a special service number, an automatic appointment (three appointment methods, telephone stored value card mode, web mode or business platform), automatic billing, 24-hour unattended Provide administrative conferences, corporate consultations, remote teaching, telemedicine, etc.
