What is the “threat” of OTT providers for the business of a telecom operator?

Type: Retraction
Notice date: 7/15/2021 0:00
Journal: Modern Scientific Research and Innovation (Современные Научные Исследования И Инновации)
Publisher: International Scientific and Innovation Center (Moscow) (Международный научно-инновационный центр (Москва))
Notice DOI: unavailable
Original paper DOI: unavailable

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