using 2 ISDN connections to make one fast one
 

Ok where I currently work they have 2 isdn lines coming into the building I want to take the 2 modems and use them as one connection so I know I would need 3 network cards in the machine but how do I got about setting it up so either the computer knows how to balance the load on the 2 isdn modems or so that both modems are used to make one fast connection to the internet? I know its possible to do with modems using 3 modems to get a slightly faster connection so my assumption woudl be there shoudl be a way to do it here too.