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作为国际大都市的上海，早在１９９５年电信部门就搭建了ＡＴＭ试验网，开展新技术跟踪和应用试验，１９９７年又率先建成国内最大规模的本地网，在宽带信息网络建设中达到了领先地位。宽带通信代表了信息时代的发展方向，又是今后市场竞争的焦点，谁抓住了宽带市场，谁就掌握
As an international metropolis in Shanghai, as early as 1995, the telecommunications sector set up an ATM trial network to carry out new technology tracking and application tests. In 1997, it took the lead in establishing the largest local network in the country and reached a leading position in the construction of broadband information networks . Broadband communications represents the development direction of the information age, but also the focus of future market competition, who grasp the broadband market, who grasp