2 weeks ago they switched us from PPPOE to DHCP without any warning causing us to lose internet until I could change the router config. Ever since then my OBi110 won't work correctly and I've changed phones, ethernet cables, phone cables, and eve tried a brand new OBi200 to see if it was the OBi, but nothing.
Just to clarify what happens, when I try to use my phone I get a dial tone, but I can't dial or talk. It receives calls, but the other person can't hear us at all. If we try to dial anything (including * commands) nothing happens and the line goes dead about 45 seconds. I've even setup DMZ and disabled the firewall on my router AND even connected the OBi directly to the FiOS ONT. It appears to be completely working, but the phones will not dial or let us talk at all.
OBi keeps telling us to replace the OBi device, but I just don't think I could have a problem with 2 OBis that started right when verizon changed stuff on our internet.