I have a customer that has a network printer/fax I don't have the foggiest on how to connect the ata-2 device that connects to his phone system a nortel 8*24 with a NAM attached he has the software for the 8*24 is ver5. I think the ata gets attached to the 66 block not sure I am one step from just wiring the fax CO directly to the fax machine and leaving the ata adapter in the box.