GTS provides next-generation communications solutions to enterprise customers ranging from Contact Centers and Business Process Outsourcing Centers to Service Providers. We have been committed to offering a competitive alternative in the world marketplac
Viettel Group is one of leading telecom service providers in the world with over 50 million subscribers. Wireless Intelligence has ranked Viettel Group as the 19 th out of 784 biggest telecom service providers in the world regarding the number of subscrib
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