Definitions for "Dial up"
Keywords:  modem, adjective, isp, kbit, telephone
computers can dial a number that connects them to the internet, to do this is to 'dial up' for a connection.
To connect to a computer via a telephone circuit. As an adjective, refers to the kind of connection you establish when using communications software and a modem over a phone line; i.e., a temporary, as opposed to dedicated, network connection.
To open a connection between a user's computer and another computer via a modem.