You can use Internet via IP dial-up connection, if you have a PC, modem and telephone line. However, you need to have a leased circuit in order to enjoy a full usage of the Internet. Especially when you use WWW browser, it is not unusual that you have to wait for more than few minutes to receive just one image. Also if you want to have your home-page on WWW to distribute your information, you have to allow accesses from anywhere 24 hours a day. When you use the IP connection via telephone lien, the link is disconnected as soon as you hang up. You need a leased circuit to have full-time IP connection. The leased circuit service provides 24 hours connection so that your server can send your information externally. If you think of Internet as a vehicle of information distribution or heavy usage of Internet, this leased circuit service will be served best for the purpose.