Connection to ISP? Pls Read…..

Hi!

I just want to know that if there is any way to make a connection for a permanent link with an ISP without using any radio modem setup / router / bridges etc ( i.e without using any expensive devices ).

I want a cheapest way for this link with a minimum budget for initial setup & also for minimum per month billing.

Also let me know if there is any cheap device for this setup in the market?

Hope my above question will be understandable.

Awaiting a helpful reply as always.

Thanks / Sulman