Call tracking
What is Call tracking?
Call tracking is the practice of assigning a unique, trackable phone number to each marketing channel, ad, or campaign so that when a lead calls, a business can trace exactly which source drove that call and attribute the resulting lead — and its ROI — back to the specific ad, keyword, or campaign that generated it. It typically pairs dynamic number insertion on a website with call detail records and CRM integration to close the attribution loop.
More detail
Dynamic number insertion (DNI) swaps in a different tracked number for each visitor or session based on the marketing source that brought them to a page, so the number a visitor sees is itself the attribution signal — no separate tracking pixel needed for the call channel.
Tracking numbers are typically drawn from the same pooled number inventory used for other Caller ID purposes, then forwarded to a business's existing phone system while the platform logs the source, keyword, or campaign tied to that number for reporting.
Frequently asked
- How does call tracking know which ad or campaign generated a call?
- Each ad, campaign, or web session is assigned its own unique or dynamically swapped phone number, so when a call comes in, the number dialed itself identifies the source — no manual entry required.
- Does call tracking require a separate phone line for every campaign?
- No. Tracking numbers are proxy numbers drawn from a pool and forwarded to the business's existing phone system, so calls still land on the same lines while the platform logs which tracking number was dialed.
See also
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