A device or a program, which is makes the transformation of data or
signal. Codecs can both code flow/signal (often for transfer, storage or
encoding) and decoding – for review or changes in the size, more suitable also
for these operations. Codecs are often used during the digital processing of
video and sound.
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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