An information service on demand. The term was popular when analog modems were the only way to connect to a remote system. See dial-up.
"dial-up services." YourDictionary, n.d. Web. 18 June 2018. <http://www.yourdictionary.com/dial-up-services>.
dial-up services. (n.d.). Retrieved June 18th, 2018, from http://www.yourdictionary.com/dial-up-services