The unified communications industry will claim $30 billion in market share by 2013, according to Wainhouse Research. The service revenue aspect of that sector will top $17 billion in the same time frame, In-Stat Research found; and, the firm added, SIP trunking will interconnect unified communications “islands,” saving users plenty of money. Finally, VoIP penetration among U.S. businesses alone will ... (397 words)

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