Telefónica, Deutsche Telekom and Vodafone Use Blockchain for Roaming Settlement
(https://i.imgur.com/VAwt3mBl.jpg)
Spain’s Telefónica, Deutsche Telekom and U.K. provider Vodafone have finalized a trial blockchain solution for the settlement of roaming... See more for yourself here (https://cointelegraph.com/news/telefonica-deutsche-telekom-and-vodafone-use-blockchain-for-roaming-settlement).
Your opinion is greatly appreciated.