Track calls in Germany, Denmark, Netherlands, and more than 60 other countries
Call Tracking: Knowing Which Campaigns Actually Generate Calls
matelso assigns every call to its corresponding campaign source and automatically reports the conversion to Google Ads, GA4, and your CRM—or any other third-party system. Your investments are then directed to the sources of those calls. The result: more leads and revenue with the same budget.

What your data doesn’t show
There are three areas where your marketing is currently making decisions without data. Each of them is costing you money.
Call inquiries are your blind spot
Clicks, forms, downloads—everything is tracked accurately. But when it comes to phone calls, the trail goes cold. The phone rings, but your reports don’t show any campaign associated with it. Ironically, your strongest lead doesn’t show up in any statistics.
Your smart bidding learns from incomplete data
Google Ads optimizes based on what it sees. It doesn’t see phone calls. So the algorithm bids on form leads and, of all things, scales back the ad that actually makes your phone ring. Your best channel is shrinking—and looking at your numbers, it seems as though the ad is to blame.
They count calls, but don’t know their value
Sounds like a good day. But hidden among those calls are appointment requests, complaints, job applications, and the supplier who dialed the wrong number. As long as every call counts the same, your campaigns are optimized for a conversion that might not even have been one.
What customers have achieved and made visible with matelso
Call tracking works with the tools you already use
Calls, reviews, and conversions are automatically routed to where you’re already working. No need to log in a second time, and no data needs to be entered manually.

Can’t find your system here? Use Zapier, Make, or n8n to connect matelso to thousands of tools without any coding.
An overview of all call-tracking features
Track every call back to its source and see which campaign generated it. This way, you can make budget decisions based on actual inquiries and increase your conversion rate.

Static Call Tracking – for print, billboards, radio, and TV
- Calls are tracked using predefined tracking numbers.
- Shows the effectiveness of offline advertising.
- Goal: You want to know whether the poster, ad, or TV commercial generated calls.

Dynamic Call Tracking – for Websites, SEO, and Google Ads
- Automatically assigns unique phone numbers to website visitors and links calls to website interactions and customer data.
- Goal: You want to know which ad, keyword, or landing page triggered the call.

International phone numbers
- Phone numbers in over 60 countries—tailored to your needs.
- Individual numbers or large number pools can be booked quickly.

Call Tracking API
- Automatically configures call-tracking users and phone numbers.
- Flexibly integrates marketing, CRM, and external systems.
And many more features
What customers say
about matelso Call Tracking
How much does call tracking cost?
The cost of your call tracking setup is based on the price list in the call tracking contract. To help you understand better, here are two typical setup calculations. You’ll only be billed for what you’ve booked in the Control Panel!
Small websites
From 122 € / month
Setup Fee including Full Service Onboarding: 456€
Calculation for up to 3,000 website visitors per month.
Dynamic call tracking of up to 10 simultaneously active website visitors
GA4 or Google Ads integration
Reporting, dashboards, lead management, and much more.
Medium-sized websites
From 202 € / month
Setup Fee including Full Service Onboarding: 596€
Calculation for up to 30,000 website visitors per month.
Dynamic call tracking of up to 100 simultaneously active website visitors
GA4 or Google Ads integration
Reporting, dashboards, lead management, and much more.
Individual
Upon request
From small businesses to large enterprises: We would be happy to advise you on your individual requirements and prepare a suitable offer.
20 years of experience — 250 million calls routed — servers located in Germany — used on over 10,000 websites
Data privacy compliant with matelso
Company & server location in Germany
As a German Martech company, we have set the highest quality standards for our server locations and the associated speed, data security and stability for our customers since our foundation in 2006.
100% GDPR-compliant integration
All customer inquiries are processed in accordance with the General Data Protection Regulation and made available in your matelso workspace. You can find out more in our privacy policy.
Encrypted communication channels
All contact options provided to your users and customers via matelso are securely encrypted.
Data sovereignty at any time
matelso does not pass on your data or the data of your customers to third parties at any time. Especially in times of AI learning, it is important to us to emphasize this quality feature.
Frequently asked questions about Call Tracking
matelso Call Tracking is an innovative technology that enables marketers to place even greater trust in the performance of their campaigns and to further optimize them based on customer needs and habits. Here, interested parties can find answers to the most important questions about our MarTech solution.
What is Call Tracking?
Call Tracking is a method that attributes phone calls to a specific marketing source. To do this, campaigns, ads, or individual website visitors are assigned their own phone numbers. When someone calls, it’s possible to determine which channel, ad, or keyword triggered the call—the call becomes measurable as a conversion, just like a click or a form submission. The goal: to determine which advertising measures are effective and which are not.
What are the benefits of Call Tracking?
Call Tracking gives companies the ability to accurately measure and optimize the effectiveness of their marketing efforts. It enables a detailed analysis of call sources and call histories and helps improve customer service.
Call Tracking provides a better understanding of which campaigns generate the most calls and which initiatives have the highest conversion rates. By analyzing call times and durations, marketers can also gain valuable insights into customer needs and behaviors.
How does Call Tracking work?
In general, Call Tracking links an advertising campaign to a specific phone number and the calls it generates. The technology tracks and analyzes how many calls individual advertising campaigns actually generate and, ultimately, how successful they are. In particular, call tracking focuses on call duration, call counting, and determining the value of a call.
In addition, call tracking can be divided into two different levels, which work as follows:
- Static Call Tracking
- Static Call Tracking uses different phone numbers for the website, print ads, and radio to measure the performance of these media. Specifically, this method assigns a single phone number to each (advertising) campaign. This allows marketers to determine, for example, which billboard or website generates the most calls.
- Dynamic Call Tracking
- Dynamic Call Tracking enables the precise measurement of the success of online advertising campaigns. Here’s how it works: A script is embedded on a website that assigns a unique phone number to each visitor. This allows marketers to unambiguously attribute every call generated to a specific website visitor. It also allows them to measure the correlation between phone inquiries/orders and the individual online advertising channels (SEA, display, newsletters, SEO, etc.).
Is Call Tracking compliant with data protection laws? What do I need to keep in mind?
matelso Call Tracking is GDPR-compliant. We act as a data processor on behalf of our clients and use only first-party cookies. The data collected as part of our projects “belongs” to our clients and is not used by matelso for any other purposes. Additionally, our servers are located in Germany.
For dynamic call tracking, the website’s privacy policy should include a corresponding notice. Furthermore, call tracking should be integrated into the consent management system. We’re happy to assist with the review—in collaboration with data protection officers and legal advisors.
You can find more information here.
Can I track Call Tracking calls as conversions in Google Analytics (GA4)?
Yes. matelso Call Tracking can be connected to numerous marketing, analytics, and CRM systems—including Google Analytics 4 (GA4), Google Ads, Matomo, Salesforce, HubSpot, Microsoft Advertising, and Zapier. Call tracking data can also be transferred to other systems via APIs and custom integrations.
Through integration with GA4 and Google Ads, calls are recorded as measurable conversions and attributed to their original campaign, ad, or even the triggering keyword. This ensures that phone leads are also included in campaign analysis.
Particularly relevant for Google Ads: Qualified calls and their conversion values can be fed back to Google Ads. This provides Smart Bidding with additional conversion data and enables it to optimize campaigns specifically for ads and keywords that actually generate valuable calls and leads.
Does the Call Tracking number also have my local area code, or is it always an 0800 number?
Each customer is free to choose whether to use a local access number. For each Call Tracking scenario, you can specify whether you want a local Call Tracking number or an 0800 number. The range of features is the same. Experience shows that local businesses often prefer a phone number with a local area code.
Which Call Tracking Package is right for me?
There is no “one-size-fits-all” solution for call tracking—every package should be customized. We’d be happy to consult with you over the phone and put together what we believe is the perfect call-tracking package for you, with no obligation.
You can find more information here.
What is the difference between static and dynamic Call Tracking?
Static Call Tracking uses fixed phone numbers for each channel or medium. This allows you to see whether a billboard, ad, or TV commercial generated calls. Dynamic Call Tracking automatically assigns a unique phone number to each website visitor. This makes it possible to determine which ad, keyword, or landing page triggered the call. In practice, most companies combine both methods.
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