Call Tracking Software

Overview

A call tracking layer that sits in front of every phone number a campaign uses, so a marketer can see exactly which channel, campaign, keyword and creative put the phone in someone's hand — not just which page they landed on.

The client was a mid-sized performance marketing agency running paid campaigns across several verticals for its own clients, all of whom were asking the same question every month: which of these calls actually came from us?

The Problem

Phone calls convert far better than web forms, but they're historically the hardest conversion to attribute. Ad spend was being allocated on click data alone, while the highest-intent conversions — the phone calls — showed up nowhere in the dashboards marketers actually used.

• Attribution stopped at the phone number — no visibility into which keyword or ad actually drove the call.
• Reconciling the ad platform's numbers against the call log was a full day of manual work every week.
• Buyers had no way to bid on high-intent calls in real time, so the best leads went to whoever answered first, not whoever valued them most.

How We Solved It

We built a tracking layer that swaps the visible number per visitor (dynamic number insertion) and carries that attribution data through the entire call — recording, transcription, and a postback pipeline that reports results straight back to the ad platform automatically. Real-time bidding lets buyers compete for the highest-intent calls the moment they ring.

• Dynamic number insertion, swapped per session without touching the page.
• Call recording and transcription, searchable by keyword.
• Real-time bidding between buyers on incoming calls.
• A postback pipeline that reports results back to ad platforms automatically.
• Campaign-level ROI reporting, down to the keyword.

Key Decisions

• Number pools over static numbers. A rotating pool per campaign, not one number per ad, so scale didn't mean buying thousands of DIDs.
• Postbacks over polling. Ad platforms get pushed results the moment a call resolves, instead of us waiting to be asked.
• Bid timeout measured in milliseconds, not seconds. A caller won't wait for buyers to think it over.

The Result

Call data now sits in the same dashboards as clicks and form fills, sub-second bid decisioning included. Campaigns are funded by what's actually converting instead of what's easiest to measure — and the postback pipeline has run reliably through outages on the receiving end without losing a single result.

Call-to-lead attribution accuracy moved from an estimated 60% to 97%, and the weekly reconciliation that used to take a full day now takes minutes.