What measurement gap can a call-tracking service fill?

A call-tracking service helps bridge the measurement gap for offline conversions. When a customer sees an ad online, then calls a business directly from that ad or a subsequent search, and then makes a purchase or completes a service offline, traditional online tracking methods cannot attribute that conversion back to the original ad. Call tracking assigns unique phone numbers to campaigns or ads, allowing businesses to see which online efforts are driving phone calls and subsequent offline actions. Mobile web conversions and mobile in-app conversions are typically tracked through website analytics and SDKs, respectively, and do not inherently require call tracking. Cross-device conversions are tracked by linking user activity across different devices, often through signed-in accounts or probabilistic matching, which is distinct from tracking phone calls.