Mobile VoIP set to hit half a trillion minutes

Analysts Juniper Research calculate that users of mobile 3G and 4G networks currently make 15 billion minutes of calls using VoIP. But as faster networks become more common, Juniper believes this total will rise, to 470.6 billion minutes.

Mobile VoIP traffic is also growing, as more handsets support Internet calling over WiFi, including services such as Skype, and Apple's new FaceTime video calling service on the iPhone 4.

The competition from WiFi-based voice calls - which typically earn no revenues for the mobile operators - is forcing mobile networks to look again at their policies for carrying VoIP traffic.

"We forecast that mobile VoIP over WiFi will cost operators $5 billion globally by 2015," said Anthony Cox, senior analyst at Juniper Research. "WiFi mobile VoIP is potentially the most damaging of all VoIP traffic as it bypasses the mobile networks altogether."

The hatchet with VoIP providers

Mobile companies will try to "bury the hatchet" with VoIP providers and set up partnerships that will allow them to least capture at least some mobile VoIP traffic.

The trend growth in mobile VoIP calls is expected to grow quickly among business users, who are more likely to use unlocked handsets with VoIP support, such as the Nokia E Series, or devices such as Cisco's upcoming Cius tablet device.