"Matrix is an open standard for interoperable, decentralised, real-time communication over IP. It can be used to power Instant Messaging, VoIP/WebRTC signalling, Internet of Things communication - or anywhere you need a standard HTTP API for publishing and subscribing to data whilst tracking the conversation history."
GizmoCall: Talk to Anyone Anywhere
No downloading or installing required.
Free calling to 1-800 numbers and SIP devices.
Low Worldwide Calling Rates for mobile and landlines.
With FriendCaller Web Phone make FREE Internet calls and cheap phone calls straight from your browser. No Software installation required. Click to call now!
Tellme combines the passion of people, the innovation of the Internet, the potential of voice technologies, the unprecedented transformation of the phone, plus a few new ideas.
When you use Viber, your phone calls to any other Viber user are free, and the sound quality is much better than a regular call. You can call any Viber user, anywhere in the world, for free. All Viber features are 100% FREE and do not require any additional "in application" purchase.
When you use Viber, your phone calls to any other Viber user are free, and the sound quality is much better than a regular call. You can call any Viber user, anywhere in the world, for free. All Viber features are 100% FREE and do not require any additional "in application" purchase.
"All-in-one voice and text chat for gamers that's free, secure, and works on both your desktop and phone. Stop paying for TeamSpeak servers and hassling with Skype. Simplify your life."
"The world's best video conferences are built on Jitsi.
Jitsi is a set of open-source projects that allows you to easily build and deploy secure video conferencing solutions. At the heart of Jitsi are Jitsi Videobridge and Jitsi Meet, which let you have conferences on the internet, while other projects in the community enable other features such as audio, dial-in, recording, and simulcasting."
