Twilio - Brings voice and messaging to your web and mobile applications.
LifeSize - LifeSize offers video conferencing solution that enable human interaction over any distance.
MirrorFly - World's Most Scalable Voice, Video & Chat SDK for Small, Medium & Enterprises
eyeson - Video meeting from your browser with an extra level of security.
Plivo - Plivo simplifies your customer engagement.
CallKite - Your website’s video call center in just one click.