Unfortunately, ADSL is still not readily available. Metropolitan areas will be covered first before the telephone companies move to less populated areas. It will eventually cause ISDN to fade away. A cable modem uses the existing cable tv network to transfer data at very high speeds. The call lines are always open for immediate access.
Cable modems are very fast.
They can handle anywhere from 300 kilobits to 10 megabits per second. Jones Communications is currently offering this service to customers in some regions of the country. Media General is still working on this service. Cable television companies and phone companies are working hard to get Internet services in place. It is only a matter of time before these services will be readily available to all.