I have two phone lines of which one is used exclusively for ADSL internet access. I am currently reviewing my ISP and phone connection suppliers. It turns out that I can have calls and ADSL on both lines for what I am paying at this moment. I already have 3 routers so what I was wondering is could I tandem two routers, each on different phone lines and with different ISPs in a similar way to what I had some years ago with two ISDN lines to double up on speed and throughput. Is it possible??