XConnect's recently announced plan for a trial HD voice peering federation marks a significant advance in the move to HD communication. The trial, to take place between April and June of this year, will directly connect providers offering HD voice services. That will let them pass HD calls, which provide audio quality superior to that of conventional PSTN phone calls, to one another rather than just among their own customers. The trial thus represents an effort to start building a critical mass of HD-capable voice subscribers. As such, it is as much a commercial effort as a technical one.
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More than eight years after signing up its first residential phone customer, Vonage is finally becoming a real VoIP company. Despite being the name most associated in the public mind with VoIP, Vonage actually has spent most of its time pretending to be a conventional phone company. It offered little that AT&T didn't, except a slightly lower price. Recently, however, it has belatedly begun adding other ways to use its service which take advantage of VoIP's unique capabilities. The latest additions are applications for iPhone and BlackBerry phones.
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SIP trunking services deliver voice calls from telecom providers to companies over IP data connections. Feeding their traffic directly into IP PBXes on the companies' premises, such services can bring considerable benefits. Sprint began offering SIP trunking to companies using Microsoft's Office Communications Server 2007 R2, an IP PBX software package that runs on Office servers, in February of this year. Now it's making the service generally available to business customers.
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