Dial-up Internet access

A dial-up line is a telecommunications line, with the means of a signaling method to connect to a particular remote station can be built. Advanced services such as ISDN open up numerous possibilities with regard to the handling of dial-up lines like switching a call to other terminals or conference calls.

The narrow-band Internet access, in which the computer uses a telephone modem or an ISDN terminal to select the Internet service provider ( ISP) via the telephone network is also known colloquially as. The dial-in (English dial- in or dial-up ) happens here when connecting to a dial-in node that is connected directly to the Internet.