HEATKEYS

Linphone, Free SIP VOIP client, open-source voip software for Linux, windows, mac, iphone, android. Free sip voip sdk.

Get Business VoIP Phones, VoIP Phone Systems and other VoIP Equipment for your VoIP solution. VoIP Supply is North America’s leading supplier of VoIP equipment and hardware. Over 85,00 served since 2002.

Free Zoiper softphone, Web Phone & SDK for windows, mac, linux & mobile phones. Get your own OEM branded and customized softphone. Free Download

USB Phone,USB Handset,CTI Phone,Phone Recorder,Internet phone,VOIP phone,IP Phone, Wireless phone provider

HTML5 SIP client using WebRTC framework

Polycom - The worldwide leader in unified communication and collaboration, video conferencing, voice conferencing, data and Web communications solutions.

Office SIP Server is free VoIP and Instant Messaging Software

YouTube is a place to discover, watch, upload and share videos.

Kapanga Softphone is the premier SIP software phone integrating voice, video and fax over IP communications in one single application. Kapanga Softphone lets people make phone calls, video calls and send and receive fax while connected to a Voice ove...

The Award Winning Business Phone Service over the Internet. OnSIP business VoIP service is a hosted pbx system that allows you to streamline your business communications. There’s no phone company hassle, no phone system to buy or manage, no contracts