Web-calling Wars: T-Mobile, Vonage, ooma Get Ready for Combat

Competition in Web-calling services is heating up again: T-Mobile appears to be readying its own brand of VoIP calling. That's bad news for Vonage, which reported its second-quarter earnings today.

It appears that T-Mobile may be preparing its own brand of a Web-calling service. I am not at all suprised: T-Mobile’s competitors AT&T and Verizon have been offering such services for several years now. Sprint Nextel will offer such a service when it launches its WiMax wireless broadband network next year. And a bunch of start-ups like ooma are rolling out their VoIP offerings (ooma just began accepting pre-orders).

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