用户经常向 ISP 要求高速 Internet 连接,如电子商务、Internet 电话、视频会议和实时双向远距离高数据传输等,IT 主管们也经常将这些列入企业总体战略中。在竞争日渐激烈的商业形势下,能够以低价提供高速访问的 ISP 和传输服务商将具有很强的市场竞争能力。很多企业正在评估 ADSL(非对称数字用户线)设备,它是一种刚刚出现的通信业务,能够很好地 Users often demand high-speed Internet connections from ISPs such as e-commerce, Internet telephony, video conferencing, and real-time bi-directional high-speed data transmission. IT executives often include these in their overall corporate strategy. In an increasingly competitive business environment, ISPs and transmission service providers that can provide high-speed access at a low price will have strong market competitiveness. Many companies are evaluating ADSL (Asymmetric Digital Subscriber Line) devices, which are emerging communications services that work well