Earthlink is DSL as far as I know. And I didn't know that T1 was standard for a matched uplaod/download. I'm sure it's an option, but a requirment?
T-1 carrier: A dedicated phone connection supporting data rates of 1.544Mbits per second. A T-1 line actually consists of 24 individual channels, each of which supports 64Kbits per second. Each 64Kbit/second channel can be configured to carry voice or data traffic. Most telephone companies allow you to buy just some of these individual channels, known as fractional T-1 access.
My old place had 4000 kbs download and a non-capped upload(usually got about 600-700kps up).
My new place I had to switch to Comcast, and while I get 6000 kbs down, I am capped at 354 kbs up.
Up speed is actually more important to me as some days I have my desktop and the laptop on the internet and maybe playing on Xbox Live. The Xbox is extremely selfish and picky about it's up speed to the network. I wonder if I'll be able to do that now.
That's wierd on the change with 2 cables vs 1 paul. It's like the DDR2 speed thing, it just doesn't make sense.......