Position	Website	Change	Thumbnail
1	linphone.org - Linphone, open-source voip software | Linphone, an open-source video sip phone Linphone, Free SIP VOIP client, open-source voip software for Linux, windows, mac, iphone, android. Free sip voip sdk.	0
2	getonsip.com - Free SIP account for secure voice, video, IM | GetOnSIP The fastest and easiest way to get a SIP account for free video calling over the Internet. Register your SIP address with any VoIP phone or use our fr...	2
3	voip.about.com - Your Complete Guide to VoIP - Voice Over IP - Internet Telephony Welcome to voip.about.com, your guide site to everything Voice Over IP, also called VoIP, IP Telephony or Internet Telephony. Learn how to make free o...	0
4	sip2sip.info - SIP2SIP.info - free SIP account for voice, video, IM and Presence ENUM registration	4
5	voip-info.org - voip-info.org - voip-info.org	1
6	onsip.com - Hosted PBX | Business VoIP Phone Service | OnSIP The Award Winning Business Phone Service over the Internet. OnSIP business VoIP service is a hosted pbx system that allows you to streamline your busi...	1
7	en.wikipedia.org - Wikipedia, the free encyclopedia	-5
8	antisip.com - Antisip | SIP // Desktop and Mobile Telephony Our toolkits, softphone SDKs, provide much more than just SIP, voice and video: we have integrated the latest standards for optimized NAT traversal (I...	4
9	iptel.org - Welcome to iptel.org, the IP Telecommunications Portal | iptel.org Internet Telephony	-4
10	sip.us	4
11	ippi.com - ippi - T?phonez gratuitement dans le monde entier avec l'op?teur SIP n Principal operateur de VoIP utilisant le protocole SIP. Offres r?dentielle, business et call centers disponibles via un Compte SIP ou Trunk SIP multi...	0
12	ipkall.com	-3
13	cs.columbia.edu	-3
14	level3.com - Level 3 Communications As a leading international provider of fiber-based communications services, Level 3 Communications offers a broad service portfolio and one of the wor...	11

I have no idea. Please, refresh tomorrow ;)

Site	Traffic	Engagement
wikipedia.org	66.8%	1x
snapvoip.blogspot.com	9.7%	0x
linphone.org	5.2%	0x
ekiga.net	5.1%	0x
about.com	3.7%	0x
Other	9.5%	0x

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