Voice over Internet Protocol (VoIP) continues to gain subscribers in the home telephone service market.

Households subscribing to pure-play subscription VoIP services, who are either replacing or complementing existing traditional landline services, increased from 2.2 million in Q1 2006 to 2.9 million in Q2 2006. Vonage continues to own the largest market share of pure-play subscription VoIP consumers with a 53.9 percent share.

Telephia's Total Communications Survey for Q2 2006 shows that Verizon VoiceWing and AT&T CallVantage were tied for second place, each securing a 5.5 percent share. SunRocket followed with a four percent share, while Lingo claimed a 2.6 percent share. NetZero Voice rounded out the top five with a 2.5 percent share.

The Telephia Total Communications Survey aims to understand the attitudes of households towards emerging communications services, providing integrated insights into household use and preferences across converged landline and wireless phone, VoIP, Internet and TV services. Rankings for the top pure-play VoIP providers are based on subscription services, and excludes market share for free or pay-per-call VoIP services.

Service Provider                  Share of Pure-Play VoIP Subscribers
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1. Vonage                                                         53.9%
2. Verizon VoiceWing                                          5.5%
2. AT&T CallVantage (SBC)                                  5.5%
3. SunRocket                                                     4.0%
4. Lingo                                                            2.6%
5. NetZero Voice                                                2.5%
6. Broadvoice                                                     2.2%
7. America Online (AOL)                                      1.6%
8. 8x8 (Packet8)                                                 1.1%
9. Earthlink                                                        0.9%
10. Other                                                          20.5%