Why VOIP is headed for your cell phone
From Business 2.0 Magazine - For millions of users, voice over Internet protocol, or VOIP, is lowering phone bills for calls they make from their PC or land-line phone. But soon VOIP could cut cell-phone bills, too - most of all for international users.
It's a hard concept to get your head around: Many customers already pay a flat monthly fee for a bucket of calling minutes within U.S. But for business travelers, international students and immigrants, calling abroad can add up quickly. However, if they're already paying for a data plan, routing international calls over their phone's data connection — using VOIP — instead of a carrier's voice network, they can save considerable money.
