"In a recent report on its growth, Vopium revealed some interesting statistics about how its users were accessing the service. The company which offers mobile VoIP calls and long distance calls at reduced prices, has noticed an uptick in 3G and WiFi use," write FierceVoIP's Mike Dolan.
"It would only stand to reason that mobile VoIP users would be migrating to networks that offered the best quality and lowest jitter. Vopium has reported that its users are definitely moving to the more advanced networks. Its callers using WiFi and 3G have grown from 19 percent to 35 percent in the last year," Dolan writes.
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Vopium sees mobile VoIP calls over WiFi rising