It is a type of communication between two or more people who share computer data in real time. The data can include screen, documents, graphics, drawings and applications that can be manipulated by participants.
VIETTEL TELECOM
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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