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在Internet接入方式中,作为中小型企业出于投资成本和线路利用率的考虑,往往会采用公共电话网(PSTN)或综合数字业务网(ISDN)等拨号入网的方式。但使用拨号入网方式通常一条通讯线路只一个用户上网,如果企业内部有多人要同时上网,必须每台上网的计算机分别配备通讯线路和拨号设备(如:调制解调器、ISDN适配器等),这样不仅造成资源的浪费,而且不便于管理。对于已经完成内部联网的企业,则完全可以使用以下介绍的软件或硬件设备,做到企业内部只使用一根或少量通讯线路(根据企业内部上网人数的多少确定线路的多少),一个Internet帐号,多人同时上网。
In the Internet access method, SMBs often use dial-up access methods such as public telephone network (PSTN) or integrated digital service network (ISDN) as considerations for investment costs and line utilization. However, the use of dial-up network access usually involves only one user on the Internet. If multiple people in the company want to access the Internet at the same time, each computer on the Internet must be equipped with a communication line and a dial-up device (such as modems, ISDN adapters, etc.). The waste of resources, but not easy to manage. For companies that have already completed internal networking, you can use the software or hardware devices described below to use only one or a small number of communication lines (according to the number of Internet users within the company to determine the number of lines), an Internet account, Many people go online at the same time.