This is super cool, it would make for an amazing exhibit paired with an interactive audio/video tour. Having said that, I seriously doubt this is the largest collection in the world by any measure.
- autovon equipment
- several generations of digital switches
- electromechanical switches too
- loads and loads of paper documents on compact shelving
- bell labs prototypes
- phones that i never knew existed
- the first switch from Sprint's long distance network