Stéphane Téral (pictured), Principal Analyst, Infonetics Research claims that "With the increased adoption of smartphones and mobile broadband combined with regulatory regimes that have forbidden mobile operators from blocking mobile VoIP (mVoIP) applications, the market is primed for continued adoption of OTT services .. Meanwhile, with all the pain they are inflicting on mobile operators, OTT numbers are far from being impressive: we counted a total of 91 million active users in 2011, up from 47 million a year earlier, generating revenues in the range of $1.2 billion .. This pales when compared to a total of more than 5.6 billion mobile subscribers worldwide delivering more than $460 billion worth of voice revenues".
"Frontrunner Skype, now part of Microsoft, dominates the worldwide mVoIP services market. More importantly, because they offer their services for free, there is little room for native VoIP-based services".