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Call Tracking Software: Measure and Attribute Every Call

Measure and attribute every phone call your marketing generates. With VoxoLib's call tracking software, you see in real time where each call comes from — web, mobile, radio, TV or print — and finally identify the channels that produce your sales.

If you work in performance marketing, online retail, marketplaces, directories or classified ads, measuring the phone interactions your sites and publications generate is no longer optional. Call tracking lets you follow every call your business receives, whatever the medium, and measure all of your sales channels as they happen.

Call tracking tells you the origin of each call, its duration, its status and the information attached to the caller. You can then judge how your advertising campaigns really perform, and optimise the return on your marketing spend. Setup is immediate: we provide phone numbers of every type — national, local or special-rate — with no change to your existing telephony.

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VoxoLib call tracking: inbound calls attributed to their marketing source

What is call tracking?

Call tracking is a technology that measures and attributes the phone calls generated by your different marketing channels: your website, Google Ads campaigns, social media, email or print. Each source is given a dedicated phone number. When a prospect calls, VoxoLib records where the call came from and links it to the matching campaign.

In practice, call tracking answers a simple question: which channels actually produce your calls and your sales? By connecting every phone conversation to its origin, you measure campaign ROI the same way you measure web conversions — and you stop investing blind.

How does call tracking work?

You assign a tracking number to each traffic source. Calls are automatically routed to your usual line, with no change to your phone system. In parallel, every call is time-stamped, attributed to its source and reported in real time in your statistics — and, if you want, in Google Analytics 4 or your CRM through our APIs and webhooks.

Static and dynamic call tracking

Static call tracking assigns a fixed number to a channel — a dedicated number for your print campaigns or your Google Business listing, for instance. Dynamic call tracking automatically assigns a different number to each visitor according to their source (paid search, organic search, social), giving you attribution at session level. VoxoLib offers both.

Why call tracking is worth the effort

Generate more qualified leads

Call tracking makes it easier to qualify leads by where they came from. That means better routing to your sales teams, and a higher chance of converting each conversation.

Sharpen your acquisition strategy

For performance marketers, online sellers, marketplaces, directories and classified-ad sites, measuring the phone interactions generated by your sites and publications is essential — it is often the part of the funnel nobody can see.

Lift the veil on your calls

Once you know which channels generate the most calls, you can refine your SEO and paid search to target your audience more precisely, which in turn lifts conversions.

Main features of Call Tracking

VoxoLib's call tracking comes with everything you need to be operational quickly and without complexity. Below is a non-exhaustive list of its main features.

No software to install

Call tracking is delivered as a hosted SaaS service. There is no hardware or software to deploy on your IT or telephony side. A single receiving number is all it takes — everything else happens online through our platform.

Call whisper audio

You can customise the audio files played to the caller and to the person answering. Your team immediately knows which campaign the call came from, and you introduce your brand to prospects from the first second.

Immediate setup and configuration

Once the numbers are available in your account, every change of setting or assignment takes effect in real time. And you do not need to change your telephony provider.

Complete reporting

All your data is generated live and permanently available through our online platform, viewable as tables or charts and exportable in several formats for further analysis. An API is available to pull the data into your own tools.

Dynamic call tracking

Want to measure calls by traffic source — social, ads, email? Our dynamic call tracking library assigns a dedicated number to each source, simply.

Third-party and CRM integrations

Every call received on a tracked number can notify an external URL through a webhook, making it straightforward to feed an analytics tool such as Google Analytics 4, or to enrich your CRM.

Multiple APIs

To integrate calls and phone numbers into your information system and your publications, we provide APIs that create, suspend or delete numbers on the fly, and retrieve call data.

Call recording

To assess campaign and team performance, calls can be recorded as audio in a GDPR-compliant way. This option is off by default and enabled on request.

Missed-call alerts

When prospects call and every adviser is busy, we can send you the caller's details by email — or by SMS as an option — so nobody is left unanswered.

Unsolicited call filtering

By default the service proactively blocks spam calls, so your team only handles the qualified ones.

📞 Call tracking measures the calls you receive. Web callback creates them — it lets a hesitant visitor ask to be phoned back within seconds, free of charge. The two are complementary.

Frequently asked questions about call tracking

What is the difference between static and dynamic call tracking?

Static call tracking assigns a fixed number to a channel — for example a dedicated number for your print campaigns or your Google Business listing. Dynamic call tracking automatically assigns a different number to each visitor according to their source (paid search, organic search, social), for attribution at session level.

Does call tracking work with Google Analytics?

Yes. Every call received on a tracked number can be sent to Google Analytics 4 or to your CRM through a webhook, so you can follow your phone conversions alongside your web conversions.

Do I need to install software to use call tracking?

No. VoxoLib is a fully SaaS solution: no hardware, no software, no change to your telephony. A single receiving number is enough and setup is immediate.

Is call tracking GDPR-compliant?

Yes. Call recording is optional and enabled at your request, in compliance with GDPR. You keep control over the data collected and how long it is retained.

What kind of phone numbers can I track?

We provide numbers of every type — national, local or special-rate — and calls are routed on to your usual line. There is nothing to change in your existing phone system.

We are here to help

We are available to look at your requirements and answer your questions. Get in touch so we can study your project and put together a suitable quote.