Isn't DSL basically the same thing? If you live in a jurisdiction with unbundled local loops (which I suspect you do not), your phone company terminates your DSL at their nearest "office" (often a roadside equipment cabinet nowadays) and then does Metro Ethernet over the phone company's data lines to your ISP.

If you don't live in that jurisdiction, it's the same but your ISP and your phone company are the same company.

Also you don't dial your ISP with a number.