Telefonica, Deutsche Telekom and Vodafone UK team up to use blockchain for payment roaming

According to a recent announcement from Hotcoin Global, USTZ deposits and withdrawals will begin at 5:00 p.m. on July 15 and USTZ / USDT trading will begin at 6:00 p.m. on July 15. According to the report, USTZ (Universal Token) is a large chain ecosystem based on multi-chain blockchain technology, mainly providing and performing protection, distribution and delivery of existing products and products of businesses and individuals. The Digitization of Asset Exchange Rates is a technology deal for the exchange of technology in the global digital marketplace, contracts, payments, savings, fiat currency exchange, and token trading.