With two DSL lines, each maxed near the limits for our 5.2+Km loop, it seemed handy to have the line status (noise margins when "up") available at a glance. Thus..

1st line: SpeedTouch ST516v6 modem, 3008/800 Fast,
2nd line: TP-Link TD-8841 modem, 3008/800 Interleaved.