The company I referenced above having witness uses patch panels from their Aspect switch for their CSR classrooms.

They have different size classrooms wired up about 4 floors apart and relocate and patch the sets in depending on class size and what other departments have booked the training rooms. Most other departments don't need telephone sets in their training classes.

The main call center and help desks are hardwired on Bix blocks and punched as required in the appropriate floor closets.