(off-topic) Dedicated link reselling company

[irado op sapo.pt]

Hello,

Sorry for writing in english, I don't speak dutch.
I'm looking for a company in Netherlands, Amsterdam where I can buy a  
internet access dedicated link from.
I need to run an VoIP application for 20 simultaneous calls so I need  
a very strong link
Does anybody have a company to indicate me?

You may replay to directly to my email to avoid flames on the list.

Thank you very much.

Jorge