How to Build a Voice Proxy in Node.js Using Voice API

You can communicate securely with a Vonage driver without revealing your actual phone number using the Masked Calling feature. To deploy this application on Vonage Cloud Runtime, you need to purchase a Vonage phone number and go through a few steps, including deploying new instance and linking it to your application. You can customize the prebuilt application directly on Vonage Cloud Runtime and include its working code in your own application. The call flow works by adding phone numbers and setting an expiration date for how long you'd like them to use the call masking feature, triggering the `onCall` endpoint after waiting for an incoming call to the Vonage number, retrieving paired numbers with the `findPair` function, and handling pair existence and expiration accordingly.