Don't know, possibly. Ethernet refers to LAN network. But then different types of connections may be connected via your ethernet card. And that is the question; what your connection is. T1 is used by large companies. So maybe you do have one. I'm not in the know about these types of things. (The broadband I'll be using in a month's time will be connected via the ether card on my comp.) I'd suggest there will be people on this forum who know. But they might need a few more details. But if you're using 1000Base-T or similar then chances are that you 'might' be T1.