[In digital TV era of leaderette ], various interdynamic application, value-added service arise at the historic moment. As supporting the business and the middle one employed, countries all over the world district Have all taken active action and made the relevant standard with technical standard organization. Understand and is chosen the appropriate standard correctly, as the development basis of enterprise or unit product and business, put up the intersection of operation and environment that open as much as possible, cross over as to digital the intersection of TV and the intersection of industry and sound development and fusion type of chain essential. ... Read more
The summary has introduced the principle of QoS, has described especially that is realized by IxNetwork 5.40 two layers and the methods of testing and steps of three layers QoS, have summarized 5 great advantage characteristics of IxNetwork 5.40. ... Read more
It is an extremely arduous task in the communication design process to develop H.323 agreement inn, the difficult point mainly lies in: Develop the engineering design resources needing to invest several years in the complicated agreement inn, and know these complicated standards also need a accumulation and learning process of knowledge, this text will discuss and develop H.323 agreement inn and VoIP to employ the question, ambiguous, difficult, etc that the system meets. ... Read more
” The message of Residential Area ” The system utilizes the mobile phone to pass in and out the particular Residential Area to need to exchange the characteristic of the information of the seat with the exchanger, combine and move communication network and short message at present and release the platform, realize to particular users in the particular area, particular time, send and customize the individualized message appreciation service system which serves the message. The core of the message system of Residential Area lies in to make through the letter to control and obtain target users’ basic information. ... Read more
In advanced operation advanced microprocessor With consuming the electron figure and game chip group The semi-conductive device that adopts in the apparatus, through the providing data that up to 6.4Gbps rate of serial bus interface of high speed the same, such as PCI Express and HyperTransport. Develop the street map according to the international semiconductor of 2005 ,By 2010, the interface of 10Gbps and higher speed will be adopted extensively. And some experts of industry predict within 10 years, data rate will be up to 20Gbps, so some basic tools must change. It is the innovative technology with cost-effective of a kind of pole that the far end ring goes back. Through helping the semi-conductive manufacturer to reduce and test the cost and shorten the development period of the semiconductor of new generation effectively, the far end ring will go back and will accelerate the above-mentioned development trend. ... Read more
By the look of development of WDM technology, the earliest WDM system is that the simple point reaches some systems, it is not a mere layer of groups’ network in the real meaning. Later for meet the intersection of business and net, divide into groups, melt, bring spacious particle, network demand of group that took dynamically, such new technologies as WDM networking adopts ROADM, adjustable wavelength laser instrument and wavelength to change gradually, the flexible deployment ability of making the system with wavelength passway, thus construct the mere layer of networks of the real meaning. Meanwhile, in order to solve the conveyance of business of high-capacity Ethernet effectively, layer needs to offer the wavelength business directly in the light. ... Read more
SIGTRAN whether letter of IETF make it fit IP convey the intersection of PSTN and transmission control protocol that letter make at the network not to convey the intersection of work group and what SIGTRAN set up in agreement. SIGTRAN define one complete the intersection of SIGTRAN and the intersection of agreement and storehouse, divide into the intersection of IP and agreement, letter make transmit and letter make transmit right to mix and letter make application 4. The content included of each layer is as follows: ... Read more
It is exchanged that soft: Called the media controller of gateways too sometimes, responsible for calling out and controlling, namely call out the setting-up, monitoring that is connected and remove. Its function is that the call in fact in the exchanger of the circuit deals with the function that the module finishes. It exchanges and is only responsible for the letter making and calling out and controlling that soft, without transmission function, that is to say, the communication between two users, while only calling out and setting up and breaking, make through the letter ‘ Or agreement With soft to exchange, take place mutually, at other time, pronunciation, video or other medias between two users flow, passing softly exchanges. ... Read more
It is exchanged that soft: Called the media controller of gateways too sometimes, responsible for calling out and controlling, namely call out the setting-up, monitoring that is connected and remove. Its function is that the call in fact in the exchanger of the circuit deals with the function that the module finishes. It exchanges and is only responsible for the letter making and calling out and controlling that soft, without transmission function, that is to say, the communication between two users, while only calling out and setting up and breaking, make through the letter ‘ Or agreement With soft to exchange, take place mutually, at other time, pronunciation, video or other medias between two users flow, passing softly exchanges. ... Read more
