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...e, hmmm...) as well as a Sipura SPA3000. With both of these interfaces, I'm getting consistent mis-dials on outbound calls, broken inbound fax-detection, broken DTMF detection in the attendant menus. Hours of adjustments to the gains on the Digium card only added echo and failed to reduce the offurenc of the other issues. These same two interfaces worked fine on a line at my office so I'm pretty sure the issue is with the lines at the test site. So, what are my options here for interfacing with these lines? Would the channel-bank route affect this? Thanks in advance for any suggestions,...