Genesys - Genesys provides omnichannel customer experience and contact center solutions in the cloud and on-premises.
Twilio - Brings voice and messaging to your web and mobile applications.
Plum DEV - Plum DEV lets you use VoiceXML to build IVR and voice apps on a secure, reliable, scalable, feature-packed cloud platform.
Plivo - Plivo simplifies your customer engagement.
Aspect Prophecy - Aspect Prophecy is a powerful, entirely standards-based platform for speech, IVR, and SIP VoIP...
smooch - Smooch connects your business software to all the world’s messaging channels for a more human customer experience.