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  1. TechNewbie1000

    Option 11c was on copper from the CO and working. CO is now supplying fiber and wont work? Signaling

    Hi my name i am telephone/digital technician and my o my do people ask/force to try troubleshoot horrible problems all day. I have and need help in regards to trying ot troubleshoot a PBX on our side that wont talk with the CO's new fiber run they gave us. Apparently it was copper feed before...

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