My Avaya Definity G3 and 1A2 Key System

[Hill Haven Telephone Company]

Thought Id share a pic of the brains of my phone system. 

Avaya Definity G3 connected to Asterisk over T1 PRI.   The asterisk box lives in the server rack in the living room closet.
WeCo 551B Shoebox KSU. 

The only thing I wish I could do is rack my definity G3 because it takes up so much space

Eventual goal is to mount the shoebox KSU in the server rack so it takes up less wall space. 

[Key2871]

Isn't your 551-B a little hard to service up there?
Otherwise it looks cool, I don't know what a G3 does, but it is a large cabinet.