[asterisk-biz] Poor Line Condition reported by fax machines

Hello,

 

I am hoping that someone on this list may have some insight to a fax problem we have been experiencing.

 

We have some fax machines hooked up to a Rhino Channel Bank that is hooked up to our Asterik server.  Starting this monday our fax lines stopped working and started complaining about 'poor line condition'.  We have had our PRI provider out to check the line, he ended up swapping out all of the hardware for our circuit and confirms that the circuit is now as clean as possible; however our fax machines still complain about 'poor line condition'.  The strange thing is that while the tech was swapping out the hardware for our PRI circuit, we had intermittent ups and downs and we tested the faxes at one point and they did work.  But now, after the circuit has been rebuilt, we have the same results as before; 'poor line condition'...  Yet the provider's tests show that the line is good.

 

Does anyone have any thoughts about what may be causing this?

 

-Tim