Case Study: All Points Digital achieves precise call attribution and ROI-driven ad spend with CallRail

How two brothers built a marketing agency for 100 million dollar companies using CallRailʼs Call Tracking API

All Points Digital, a marketing agency founded by brothers Jamie and Jason Mazur, faced a common but critical problem: call-based leads were siloed and hard to attribute to specific campaigns or long sales outcomes. Working in industries where calls outnumber form submissions 8–10:1, they needed a way to connect call and form data to CRMs like Salesforce and HubSpot to prove marketing ROI. They turned to CallRail, deploying CallRail’s Dynamic Number Insertion and Call Tracking API to capture detailed source-level call data.

Using CallRail’s Dynamic Number Insertion, Call Tracking and CallRail API, All Points Digital built custom integrations (via Google AppScript/Node.js) to match CallRail records to CRM natural keys, automate reporting, and even integrate CallRail's outbound calling API into a sales app to record calls and track callback speed. The impact was immediate: clients such as Eliminate ’Em can now calculate advertising cost per job and customer lifetime value, tie specific ad spend to downstream revenue, and surface high-value outcomes (e.g., linking a $10,000 campaign to a later $1M sale). CallRail enabled All Points Digital to prove ROAS, optimize budgets, and improve sales follow-up performance.

All Points Digital

Jamie Mazur

Technical Architect and Founding Partner