Total Voice over IP (VoIP) subscribers worldwide increased by 34 mln subscribers in 2006, In-Stat says. The European consumer VoIP market increased by over 14 mln subscribers in 2006. US wireline operators added only 4 mln VoIP subscribers in 2006. In 2011, the US will represent only 18% of the global consumer VoIP market. By 2011, In-Stat predicts the consumer VoIP market will total nearly $44 bln worldwide.