I don't see any official model numbers on the cabinets. I decided to take some pictures of the main cabinets, hoping they might help.
Voicemail - we originally had only 4 lines, which easily got tied up and folks were getting busy signals a lot. We bumped that up to 12 lines, and the busy signal problem has been resolved.
![[Linked Image from farm5.static.flickr.com]](https://farm5.static.flickr.com/4122/4944740087_3e4552b6de.jpg)
Inside the main cabinet
![[Linked Image from farm5.static.flickr.com]](https://farm5.static.flickr.com/4100/4944727731_b0576d79c4_z.jpg)
Network card in main cabinet
![[Linked Image from farm5.static.flickr.com]](https://farm5.static.flickr.com/4135/4944725401_a7b4d29c9f.jpg)
Side of Main Cabinet
![[Linked Image from farm5.static.flickr.com]](https://farm5.static.flickr.com/4121/4944729527_554a99f286_b.jpg)
Inside Expansion Cabinet
Side of Expansion Cabinet
![[Linked Image from farm5.static.flickr.com]](https://farm5.static.flickr.com/4121/4945316118_b25442e234_b.jpg)