Call tracking and attribution
Call tracking explained: how it works and who needs it
The short answer
Call tracking assigns phone numbers to marketing sources so each inbound call can be traced to the ad, campaign, keyword or page that produced it. Businesses where a large share of sales start with a phone call (home services, legal, healthcare, automotive, real estate) usually get the most out of it.
Key takeaways
- Static numbers belong to one source; dynamic number insertion ties a call to a website visitor's session.
- It pays off when calls are frequent, valuable and come from several paid channels.
- Check number availability, pool size, integrations and recording consent before you buy.
On this page 7 sections
Static and dynamic numbers
- Static tracking numbers belong to one source: a print ad, a billboard, a directory listing, a radio spot. Every call to that number is credited to that source.
- Dynamic number insertion (DNI) swaps the number on your website for each visitor, drawn from a pool. The platform remembers which visitor saw which number, so it can tie a call to the visitor's source, landing page and keyword.
What a platform adds beyond attribution
- Call recording and transcription.
- Automatic tagging and scoring of calls (for example, flagging calls that mention a booking).
- Routing by time of day, location or caller, and missed-call alerts.
- Sending conversions to Google Ads, Microsoft Ads and Meta, and contacts to your CRM.
- Form, chat and text tracking alongside calls, in some platforms.
Who should not bother
If you get a handful of calls a month and they all come from existing customers, the reports will be thin. The same goes for businesses that take nearly all orders online. Call tracking earns its keep when calls are frequent, valuable and come from several paid channels.
Before you buy
- Check number availability in your area codes and countries.
- Ask how many numbers your traffic needs for accurate DNI, and what each extra number costs.
- Confirm the integrations you need: your ad platforms, your CRM, and your reporting tool.
- Read the recording and consent features against the law where your callers are.
- Decide who will review calls. Transcripts nobody reads add little.
Call tracking is not a phone system
A call tracking platform tells marketing where a call came from. A business phone system such as Aircall handles the calls themselves: routing, team lines, SMS, transcripts and CRM logging. Many teams run both, with the tracking platform forwarding to the phone system.
Questions
- What is dynamic number insertion?
- A script that replaces the phone number on your website with a tracking number from a pool for each visitor, so a call can be matched to that visitor's session and source.
- Can call tracking work without a website?
- Yes, with static numbers per source, such as one number on a flyer and another on a directory listing. You lose keyword and landing-page detail.
Sources
Next step
Compare the tools for this job
Related guides
How to track phone calls from Google Ads
Three ways to track calls from Google Ads (call assets, website call conversions and a call tracking platform), what each one misses, and how to set them up.
Marketing attribution models explained
First-click, last-click, linear, time-decay, position-based and data-driven attribution, explained with one worked example and how to pick one.