The SendBird Android SDK by SendBird interacts with the API to access chat and messaging features. It includes a quick start guide to test the sample project.
Call Loop, web-based voice and SMS solution provider, offers the Call Loop API that allows developers to add Call Loop’s calling and SMS features to third party apps. Often referred to as the “Constant Contact” for voice and text, Call Loop focuses on broadcast communications. Businesses or individuals can reach subscriber bases via voice or text messages.
