I read that stuff (EQL Howto of Robert Novak), It talks about if you have two dedicated dialup account or any one of them with two modems.

I have a single dedicated account that support multilink mean that you are able to connect with two modem with the same account (but both modem should be dial at onces ). what i need is that both the modems dial at the same time and get connected with my single dialup account. I have check on windows NT - 4.0 its works fine .now i need that one on my linux Box ( Redhat linux 6.2 ) .