CometChat - Seamless Real-Time Chat Integration for Your Applications.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
HappyFox Chat - HappyFox Chat is a live chat software for the websites.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Taskworld - Taskworld is a cloud-based collaboration platform that increases productivity, engagement at work.
Plivo - Plivo simplifies your customer engagement.