With the rapid development of VOIP technology, more and more enterprises attach great importance to VOIP telephone system because of its low cost, easy to implement value-added services and so on. And VOIP telephone system is now generally considered as the future technology direction. However, the signaling network which is widely used by the traditional
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Recent years, the structure of communication network has changed profoundly, one aspect is that the data service which is mainly IP based develops rapidly, it has become the dominant service in telecommunication networks; the other is the large technical progress in communication, ATM,IP and other techniques gradually become mature, the network technique is on the
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With the rapid spread of applications of IOT, IOT is becoming an important way of perception of the world. A wide range of sensor networks are at the tip of IOT, and WSN is one of them.But there are two problems about how to achieve heterogeneous interconnection between WSN and the existing network, and how
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The current telecommunication network is undergoing profound changes, from the traditional circuit-switched network based program-controlled exchange, toward the IP network, to packet-switched network-based softswitch. Face IP network, the original traditional network troubleshooting techniques becomes increasingly applied no longer.The softswitch network, according to the function is divided into different levels and various functional levels of connectivity
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The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering Internet Protocol (IP) multimedia services. It was originally designed by the wireless standards body 3rd Generation Partnership Project (3GPP), as a part of the vision for evolving mobile networks beyond GSM. Its original formulation (3GPP Rel-5) represented an
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The development of NGN from at the beginning of the century to the present trial network operator have a large-scale use, already becoming more and more obvious in the advanced nature of the network and superiority of NGN.At the 1990 s and at the beginning of this century a nationwide large-scale construction of SPC switching
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In this thesis, the technology and application of planning rolling of next generation network is studied. The subject is from the rolling planning project of telecommunication planning enterprise. Besides, local service forecasting and rolling planning projects is presented for three years from the view of network planning and the local rolling plan of the core
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After the long-term development through Internet and voice network in ChenZhou TieTong, more and more network problems gradually appeared, so network improvement becomes very urgent. Also because current construction needs of optical fiber into and the Copper out, PSTN network’s optimization, timely using the software exchange, communication networks becoming bandwidth and multimedia, and integration of
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For telecom operators,traditional switched telephone network evolution to NGN is a general trend,but the existing network investment can not be lost at once,NGN should gradually replace the existing PSTN etwork.Telecom operators first taking the replacement of the access layer network device is a safer option,to establish one or more NGN local swich and connect with
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Soft-switch technology for telecom operators to provide the network transformation, technology transformation and strategic development opportunities, and telecom operators to enhance the network core competitive ability the important technical means.Soft-switch network is the next generation network which is a packet-based network and able to provide voice, data, image, multi-services, etc. The separation between services and
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