I am hoping someone may have one of these units in stock or in production and can tell me what power supply/brick it uses. We have one that a customer was no longer using but has no power supply and I need to figure out what the proper power supply is. Our disty doesn't know, and the 3 departments I have talked to at Avaya can't tell me. Hoping someone may have one they can just look at and tell me what model it the power supply is. Thank you in advance!!!