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R&D is being carried out in the following fields: IP network field such as core network technologies, including network control, network performance monitoring and automatic setting technology necessary to provide variety of high quality communication services including voice, video and data over integrated IP network; and Photonic and network field such as FTTH, ROF and next gereration Ethernet technologies aimed at advanced "triple play"services, in addition to IP and optical network integrated management technologies by GMPLS control and future All-optical network technologies of highly reliable networks.

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Fixed mobile convergence(FMC)(ISM/MMD, FMC storage)
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IP multicast and P2P techniques for large scale IP network
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Zero administration technology (information home appliance、next generation home gateway)
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GMPLS intelligent optical networking technology
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Broadband optical access technology (FTTH, GE-PON, ROF)
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Ultra high-capacity optical transmission system technology
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All-optical network and devices (All-optical regenerator and wavelength converter)
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IP quality analysis and assessment
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