Wassenger - WhatsApp API made simple for developers and businesses
MessageBird Chat API - Connect with your customers through different messaging apps
Voiceflow - Build voice apps in your browser without coding
Picky Assist - Your Andriod Phone As A Gateway to Automate WhatsApp, SMS & Calls
Elucidat - HTML5 e-learning authoring software for creating amazing and ambitious responsive online and mobile e-learning.
Twilio - Brings voice and messaging to your web and mobile applications.