Computerworld - VoIP on 3G will beat Wi-Fi 

Mobile VoIP is set to grow, but it will run over the 3G data provided by cellular handsets, rather than over Wi-Fi, according to a research report from Disruptive Analysis, which predicts 250 million users ... of 3G VoIP by 2012, compared with less than 100 million for voice on Wi-Fi. "Yes, 250 million is a surprisingly big number," said Dean Bubley of Disruptive Analysis. "I did the sums and then had to triple-check my own model. The fundamental truth, he says, is that mobile networks are moving towards LTE (or possibly UMB) and that will be all IP, so for operators "VoIP is mandatory." VoIP will allow carriers to handle more calls on their scarce spectrum and backhaul, and reduce expenses by handling all traffic as data. It will also let them offer new services such as push-to-talk and voice-integrated "mashups", says Bubley, in his report, VoIPo3G Business Models. VoIP on 3G also fits the move to femtocells, which use the subscribers' broadband service to increase coverage in the home,   [More...] [Less...]