This tutorial shows how to make a Android app that can make outbound phone calls and receive incoming phone calls Firebase Functions, JavaScript and Kotlin.

In this Nexmo Voice API tutorial, you will learn how to receive an inbound call by implementing a webhook endpoint in Ruby on Rails.

In this tutorial, you'll learn to determine when a voice call has connected or completed by listening for call events in your Ruby on Rails applications.

The Nexmo DevRel team has been blogging tutorials about how to use the Nexmo SMS API to add programmable SMS to Node.js applications using Express.

Announcing the snapshot release of v2.0 of the Nexmo Java client library with full Voice API support available via Gradle or Maven.

This implementation guide will instruct you on how to set up a server to use the Nexmo Verify API for two-factor authentication (2FA) with your iOS or Android apps.

This two-factor authentication (2FA) tutorial explains how to set up an Android app to network with a server configured to use Nexmo Verify. You'll learn how to implement all of the endpoints necessary to follow a verification flow.

Learn how to add lifecycle-aware components to a simple Android chat app using the Nexmo Stitch Android SDK. The components will help make your code easier to maintain.

With the Nexmo Voice API, you can make worldwide outbound calls. All you need is your virtual phone number, the Ruby Gem, and a few lines of code.