ISDN (Integrated Services Digital Network) offers Internet connectivity at speeds of up to 128 Kbps through the use of digital phonelines. ISDN is a dial-up service that has been provided by telephonecompanies for many years. This line combines two 64 Kbps channelsto offer 128 Kbps band width broken into three bands: oneband for the ringing signal of your phone, one band for your telephoneconversation, and one band for data.
To use ISDN, you will need a serial communications port, an ISDN modem, and ISDN telephone line from telephone company operating in your areas.
To access any of these dial-up accounts you need the followings;
- Telephone Connection
- Shell or TCP/IP/ISDN account from the ISP
- Internet client software such as Internet browser