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Illustration of on-net MVoIP call flow within UMTS network  

Illustration of on-net MVoIP call flow within UMTS network  

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Advances in technology have enabled network-less mobile voice over internet protocol operator (MVoIPO) to offer data services (i.e. voice, text and video) to mobile network operator's (MNO's) subscribers through an application enabled on subscriber's user equipment using MNO's packet-based cellular network infrastructure. However, this raises the p...

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