Service in Brazil?

I am posting this question here as I know there are a number of WISP operators in Brazil that frequent this board.
I am a WISP technician for a company here in Canada. Next week I am planning on visiting friends who live just outside of Sao Paulo in Brazil. In my research (and limited understanding of Portugues) I have been unable to find a WISP that would service individual residences outside of Sao Paulo. If you know of providers that might serve the rural area southwest of Sao Paulo, please feel free to contact me off list so that we might be able to exchange information and get something going for these folks.