1. TeleSign offers end-to-end communications Platform as a Service.

  2. Track your Wi-Fi hotspot usage. Zero configuration required. It just works.

  3. Build a custom video experience using our robust APIs, or add plug-and-play video to your website in minutes using Video Chat Embeds. Start Building for FreeTalk to SalesTalk to SalesΒ .

  4. A messaging app for teams who see through the Earth!

  5. Google Voice gives you one number for all your phones, voicemail organized in an email format, free...

  6. A Complete Chat, Video & Audio Calling Solution

  7. Cloud Speech offers speech to text conversion powered by machine learning.

  8. WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

  9. Clockwork is an Easy Text Message API. An SMS API for Developers. Build powerful apps and include SMS. Signup is free, Try it now.

  10. MessageBird is an enterprise-grade cloud communications platform offering API solutions for SMS, Voice and Chat for +15,000 businesses.

  11. WeChat is a complete mobile communication and private social networking app.

  12. Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.