OpenTok

Video chat with anyone in one click! Simple, nothing to install, totally free. > Video Chat a single click on your Bistri Link to start a call > Nothing to …

Plivo is an API platform that enables developers and enterprises to build powerful Voice and SMS apps without carrier lock-in. With Plivo, you can build Voice and SMS applications with …

Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful, pay-as-you-go communications …

Mobile Messaging. Problem Solved! Nexmo is a Low Cost Messaging API service that solves the problems faced by companies and App Developers delivering Application-to-Person SMS. Problems include high cost,...

A free, open-source, out-of-the-box audio conferencing app exposed via an API. Talk with your teammates, friends, and others at the push of a button.

AddLive leverages WebRTC to allow anyone to easily add video and voice conferencing to their application.

The Hangouts API provides the programming interface to Hangouts video calls. It provides a JavaScript interface that enables your app to do such things as list the Hangout participants, share …

Aculab Cloud presents a way of creating automated telephony applications by handling all the telephony resources in a cloud-based platform. Through the use of simple, high-level language APIs, Aculab Cloud …