Dialer Docs

FreJun exposes calling as a programmable API: trigger calls from your backend or embed VoIP calling in your product, subscribe to webhooks for call outcomes and data, and manage users, virtual numbers, and WhatsApp messaging — all under one account.

Set up authorization

Create an OAuth 2.0 app or API key and authenticate your integration.

Setup and Authorization →

Make calls

Network-based calls, VoIP, and the embeddable Dialer Widget.

Start calling →

Receive webhooks

Get notified when calls end and process outcomes in real time.

Webhooks overview →

Build with FreJun

Calling APIs Trigger and manage calls over the network or VoIP.

User Management Create, update, and manage users in your account.

Number Management Retrieve and assign virtual numbers.

Webhooks Subscribe to call events with retries and signatures.

WhatsApp Messaging Send messages and manage templates and contacts.

Dashboard Manage OAuth apps, users, and numbers in the FreJun app.