Mark Bruk, a frequent business traveler, always packs a Plantronic headset with an ear bud and microphone so he can plug into any computer and make phone calls on the cheap. Once he finds an Internet ...

Will 2006 be the year that voice and data convergence really takes off? Looking back, VoIP was one of the hottest and most hyped technologies of 2005. Yet despite all the attention, only about a third ...