Now decentralized databases are created as an alternative to expensive roaming. The first project of this kind was the global telecommunications blockchain platform Bubbletone created for the direct interaction of market participants (operators, subscribers, service providers).

At the initial stage possible competitors were analyzed:

* Roaming hubs-intermediaries which use roaming as a tool of interaction between operators. Bubbletone beats them at cost — no extra charges of intermediaries, and at time — setting of communication takes just a few weeks. Solving the problem in the usual way would need millions of dollars and two or three years.

* Project Fi created by Google that offers low fares (10USD/1Gb) in 135 countries of the world. However, this project works only with Google phones, requires a subscription fee and does not support LTE.

* Apple-SIM. Works just with a few iPad models and has high rates.

Given that members of the ecosystem use the services of local operators at local rates, and the brand of the device used does not matter — the benefits of Bubbletone Blockchain are obvious.