It’s circuit switching versus Internet voice as Verizon tests the sustainability of VoIP economics.
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In far-reaching patent cases, Verizon faces off against Vonage while AT&T duels Microsoft.
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Revenue doubles, but company misses analyst estimates and its loss widens.
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Internet voice firm acquires defensive patents but is hit with another lawsuit.
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VoIP player is not concerned about patent suits, as Vonage targets traveler market.
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Lawsuits and taxes could slow investment in Internet voice and deal a death blow to some providers.
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The phone company acknowledges VoIP’s penetration into the business market.
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Verizon's strategically timed lawsuit could test the overall economics of VoIP and have a chilling effect on the market.
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After the Internet telephony company’s messy public debut, angry customers answer with a class action suit.
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VoIP provider expects customers to pay for shares they ordered in its ugly IPO.
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VoIP provider may reimburse underwriters for shares customers wouldn't buy.
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