ok, lets begin with the basics... first at all make sure, that the two analog lines are working correctly by attaching a phone to it. (i have an old headset from a canon fax 170 with me, comes very handy to check lines ) , if that is done and all works fine, connect the fax module with only a 2 wire cable to the jack, to make sure, that no failure in the jack connections is the reason for malfunctioning. What happens?
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