Amazon Simple Queue Service (Amazon SQS) is a fully managed message queuing service that makes it easy to decouple and scale microservices, distributed systems, and serverless applications. Amazon SQS moves data between distributed application components and helps you decouple these components.
Messaging
SignalWire
Build advanced communications capabilities like programmable voice, messaging, and video on the most powerful and widely deployed communications platform in the world.
Slack
Slack is a place where your team comes together to collaborate, important information can be found by the right people, and your tools pipe in information when and where you need it. Channels. Communication in Slack happens in channels, organized by project, topic, team, or whatever makes sense for you.
Twilio
Twilio brings a powerful API for phone services enabling companies to make and receive phone calls, and send and receive text messages.