I think you guys missed the question; we both need the cable that goes from the phone to the EU24 - not from the power supply to the phone. As I have said above, the cable has 3 pairs of wires and a jack that is the same size as a regular phone jack. After pouring through Avaya's documentation, I found that the cable's part number is D6AP (or D6AP-87) with a suggested retail price of around $10 for a 7 foot cable. I am currently looking for a US vendor that carries the cable.