dial-up line

基本解释

Caller ID requires that the caller's phone line, the phone system, the remote access server's phone line, and the Windows driver for the dial-up equipment all support Caller ID.
呼叫方ID要求呼叫方的电话线、电话系统、远程访问服务器的电话线、拨号上网设备的Windows驱动程序都支持呼叫方ID。
yeebang.com
But even if you follow just these 20+ tips, your pages will load more quickly and your users will be happier—no matter whether they run on dial-up or on a dedicated broadband line.
但是，即使您仅遵循这 20 多个技巧，您的页面的加载速度也会更快，您的用户也会更惬意 —— 无论他们通过拨号还是专用的宽带上网。
For dial-up connection, you need a computer, a modem, and a telephone line.
拨号上网需要一台电脑、一个调制解调器和一条电话线。

He has one telephone line, which he also uses for dial-up Internet access at 46kbps.
FORBES: Dual Buffett Strategy
Main.net's gear already serves 10, 000 European homes at speeds of 500 kilobits a second, roughly equal to average cable and digital subscriber line (DSL) speeds, but a tenfold increase over standard dial-up modems.
FORBES: Tilting at power lines