Create your Vonage Application
In this step you will create a Vonage Application capable of in-app voice communication use cases.
Open a new terminal and, if required, navigate to your project directory.
Create a Vonage application by copying and pasting the command below into terminal Make sure to change the values of --voice_answer_url and --voice_event_url arguments, by replacing SUBDOMAIN with the actual value used in the previous step:
NOTE: An application can be also created using the CLI's interactive mode. For more details on how to create an application and various available application capabilities please see our documentation.
A file named vonage_app.json is created in your project directory and contains the newly created Vonage Application ID and the private key. A private key file named phone_to_app_tutorial.key is also created.
Make a note of the Application ID that is echoed in your terminal when your application is created:

NOTE: Information about your application, including the Application ID, can also be found in the Dashboard.
Receiving a phone call in-app
You receive a call from a phone to your app