Fiber to the home (FTTH) is the technology orientation that people have continuously pursued and explored for 20 years, and it is beginning to make significant strides in the field of high-speed
broadband access to the Internet. Due to the carriers' competition, the price of optical devices reduced gradually, FTTH develops very quickly. With the emergence of next generation network (NGN), softswitch plays an important role in the evolvement from PSTN to NGN. The combination of FTTH and softswitch can solve many problems in FTTH applications, which guarantees the evolvement from
the existing network to NGN and provides service functions to meet the further requirements of various carriers and customers. This paper mainly introduces the application of softswitch in FTTH, outlines the developing background of FTTH and softswitch, and discusses the voice bearing solution based on FTTH. At last it focuses on the key problems and solutions of the application with
the example of the implementation of voice service.
KEYWORDS: Networks, Control systems, Telecommunications, Time division multiplexing, Local area networks, Data communications, Computer security, Standards development, Mobile communications, Network security