HEATKEYS

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

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

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

Music, movies, TV, shows and now friends. Get connected on iTunes 10.

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 or cheap local and international calls using your PC or phone. Stay updated on VoIP hows and whats, V...

Online video conferencing service that is affordable, interoperable (multi-vendor, multi-device), easy-to-use, scalable (multi-party) and secure. Free 14-day trial.

Embedded Software Development for VoIP, DSP, SDR and telecommunication equipment

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 free internet phone for secure calling.

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.

Our toolkits, softphone SDKs, provide much more than just SIP, voice and video: we have integrated the latest standards for optimized NAT traversal (ICE), security (TLS and SRTP) as well as all advanced SIP scenario (supervision, call transfer, call ...