T-Mobile has been quietly toiling away on an enterprise blockchain solution for months, and it looks primed to make a big reveal soon.

The telecom giant's interest in blockchain was most recently advanced after the company was prominently mentioned for its role in helping develop Hyperledger Sawtooth's 1.0 version. Yet, its overarching blockchain work is not widely known.

And while details are still being kept under lock and key, Chris Spanton, the senior architect of T-Mobile's Hyper Directory, a blockchain proof-of-concept (PoC) that was quietly unveiled in November, told CoinDesk several milestones are in the works.