once again, it's not an H4 circuit, it's an Adtran HDSL 4 wire circuit. No Tscan. The 1rst adtran hdsl technology. The end smartjack is called an HTUR. I could swap to H4 technology but the CO has no spare office repeaters, atleast they didnt 2 weeks ago. I've since had the Spare converted to be the main. Now the circuit that was giving me problems is a spare I need to fix, but my tech log has about 20 non-measured tickets I need to get to when I get time (HAHAHAHA Spare time...WTF is that???)