Introduction

In this tutorial, you will learn how to create an iOS application using Swift and the Nexmo iOS Client SDK, and then write the code to make a phone call from your iOS app to a phone.

Two parts are needed to achieve this:

• An iOS application that will make the voice call using the Client SDK.
• A publicly accessible URL that serves instructions on how to handle the call. To accomplish this, you will create a webhook server using Node.js, Express and localtunnel.

Video tutorial

If you prefer to follow along by video, you can find this tutorial on YouTube:

Completed project

If you would like to follow along without building the app yourself, the completed project is available on Github - please see the app-to-phone-swift folder.

This tutorial uses NexmoClient version 4.0 and Swift 5