Kotlin

Configure your prerequisites

There are a few prerequisites that you need to complete before you can work through this tutorial. If you've already completed any of them, feel free to skip that step.

You can create a Vonage account via the Dashboard.

Within the Dashboard you can create Applications and purchase Vonage numbers. You can also perform these tasks using the Vonage CLI.

If you want to carry out tasks such as creating applications, purchasing Vonage numbers and so on, you will need to install the Vonage CLI. As the Vonage CLI requires node.js you will need to install node.js first.

To make sure node.js is installed, please run the following command in the terminal:

node -v

Follow the steps outlined on the Getting Started with Vonage CLI page to install and configure the command line.

Using the Dashboard

First you can browse your existing numbers.

If you have no spare numbers you can buy one.

Using the Vonage CLI

Once you have found a number you are satisfied with, you can purchase that using the vonage numbers buy command:

If you want to use the Client SDK for Android, you need to install Android Studio.

Making an in-app voice call

Make a voice call from a android app to a phone using the Android Client SDK.

Steps
1
Introduction to this task
2
Prerequisites
3
Create a webhook server
4
Create a Vonage Application
5
Link a Vonage number
6
Create a User
7
Generate a JWT
8
Create an Android project
9
Add permissions
10
Build main screen
11
Initialize the client
12
Place a call
13
End a call
14
What's next?