Hey Mauricio-
I don't see any S. American data on the current QuoteCenter list of offerings. Marketing (ex-Marilyn) has stated before that if there are exchanges not on the list of providers to let marketing know. If you are interested in QuoteCenter, try to call Equis to speak with a support person regarding QuoteCenter Exchanges:
http://www.equis.com/company/about/contact.aspx
If you already have MS and are looking at receiving RT data from a local provider, you might be looking at having to use a 3rd party DDE server for your local data feed to connect to MS. I don't really know. Hopefully, there will be some forum members familiar with your geographical options.
Traders' Consortium