How to Set Up a Call Buying Source

Last updated: February 3, 2026

Call Buying sources connect your campaigns to vendors who provide live inbound calls. Once configured, purchased calls can be routed directly to your agents through your inbound campaigns.

Before You Begin

Make sure you have:

  • Vendor details

  • Inbound campaign (optional) — You can create the source first, then attach it to a campaign

Step 1: Navigate to Campaign Sources

  1. Go to Communication → Campaign Sources

  2. Click the Call Buying tab

  3. Click Create New Call Buying Source

Step 2: Configure Source Settings

  • Quality Score: Set an initial Quality Score - we will adjust this intelligently as we see monitor calls coming in

  • Pings Reserve Agents: Configure ability for Source to use Reservation System. If set to "Reserve Agents", we will reserve agents when the Source is pinged to help mitigate missed calls.

Step 3: Share API Integration Guide

Onyx generates a unique Utilization endpoint and credentials for each Call Buying source:

  1. Click on the icon beside API Endpoint

  2. Download the API Integration Guide and share with your lead vendor

Next Steps

Now that your Call Buying source is configured:

  1. Create an Inbound Campaign to receive calls from this source

  2. Share API Integration Guide. Onyx generates a unique Utilization endpoint and credentials for each Call Buying source. Once attached to a Campaign, click on the icon under Associated Campaigns to download the API Integration Guide and share with your lead vendor