In pay per call, tracking is how you get paid. Every call is attributed, routed, timed, and evaluated by software before it becomes a payable conversion. If you understand how that process works, you can design traffic that qualifies, read your reports properly, and fix problems before they cost you money.
Tracking numbers: the foundation
When you are approved for a campaign, the network issues you one or more tracking numbers. A tracking number is a phone number owned by the call tracking platform, not by the business that eventually answers. When a consumer dials it, the platform knows which campaign and which publisher the call belongs to.
Numbers come in two main types:
- Toll-free numbers (such as 800, 888, 877) work nationally and are common for insurance, legal, and financial campaigns.
- Local numbers with a local area code can improve trust and answer rates for home service campaigns, where callers expect a nearby business.
Most publishers request separate numbers for each traffic source, such as one for search, one for an SEO site, and one for social. That way you can see exactly which source produces qualified calls. Ask your network how many numbers you can use and whether there is any cost for additional ones.
Dynamic number insertion (DNI)
If you send traffic to a landing page, a single static number tells you which page produced the call, but not which ad, keyword, or campaign. Dynamic number insertion solves this. A small script on the page swaps the displayed number based on the visitor’s source, so each visitor sees a number tied to their session.
When that visitor calls, the platform can attach details such as the traffic source, campaign, and click ID to the call. Those details can then be sent back to your ad platform as a conversion, which helps automated bidding optimize toward calls that actually qualify rather than any call at all.
How calls are routed
Once a call reaches the platform, routing rules decide where it goes. Common factors include:
- Caller location, usually estimated from the caller’s phone number or entered through a keypad prompt (for example, entering a ZIP code).
- Time of day, so calls only reach buyers during their open hours.
- Caps and capacity, so no buyer receives more calls than agreed in a day or hour.
- Priority and weighting, which decide which eligible destination receives the call first.
Some platforms use real-time bidding, where eligible buyers bid on a call as it arrives and the call is sent to the best offer. For you as a publisher, routing is mostly invisible: your payout is defined by the campaign terms, and your job is to send calls that meet them. If a call cannot be routed, for example because it arrives after hours or from outside every coverage area, it usually will not be payable.
Have traffic that can drive calls?
LeadCallsDirect works with U.S. publishers across home services, insurance, legal, financial, and travel. See example rates, then tell us about your sources.
The buffer: minimum call duration
The buffer, also called billable duration, is the minimum time a call must stay connected to count as qualified. Common buffers are 60, 90, or 120 seconds, and some campaigns use longer ones. On our Payouts & Pricing page, for example, plumbing, HVAC, and pest control are shown as typically billable at 90 seconds, while roofing, water damage, Medicare, SSDI, and debt relief are typically billable at 120 seconds.
A few details matter:
- When the timer starts. Usually the clock starts when the call connects to the buyer, not when the consumer first dials. Time spent in an automated menu or ringing may not count. Confirm this for each campaign.
- Why buffers exist. Very short calls are usually wrong numbers, hang-ups, or callers who realize the service is not what they wanted. A buffer filters those out so buyers pay only for real conversations.
- What it means for you. If many calls end just short of the buffer, something in your ad or page is creating the wrong expectation. Review your copy and targeting rather than pushing more volume.
What makes a call qualified
Duration is the most visible rule, but most campaigns combine several:
- Connected duration past the buffer.
- Accepted geography, such as specific states, metro areas, or ZIP codes.
- Within hours, meaning the call arrived when the campaign was open.
- Unique caller within the duplicate window.
- Real intent, meaning the caller is looking for the service, not a job, a refund from a different company, or a sales pitch.
- Approved source, meaning the call came from traffic and messaging the campaign allows.
A call that meets every rule is payable at the agreed rate. Your reporting will show each call’s status so you can see which rules are being missed most often.
Duplicate windows
If the same person calls twice, the buyer generally only pays once. Campaigns define a duplicate window, often a number of days, during which repeat calls from the same caller ID are not payable. Some campaigns apply this per publisher, others across all sources.
Duplicates are normal in small numbers, since people call back after a dropped line or to ask a follow-up question. A high duplicate rate, however, can point to a problem, such as the same audience being targeted repeatedly or a number being shown to existing customers.
IVR filtering and pre-qualification
Many campaigns place a short interactive voice response (IVR) menu in front of the buyer: “Press 1 if you own your home,” or “Please enter your ZIP code.” IVR helps route callers correctly and filters out calls that would not qualify, which protects both the buyer’s time and your payable rate.
Some IVR menus are very short to keep callers from hanging up; others are more detailed for verticals with eligibility rules. If a campaign uses IVR, tell callers what to expect on your landing page, and watch how many callers drop during the menu.
Call recordings and quality review
Many campaigns record calls, with the required disclosures, so quality can be reviewed. Recordings help resolve disputes, identify misleading traffic, and spot training issues on the buyer side. If a buyer disputes a call, the recording and call data are usually what decide the outcome.
For publishers, recordings are a useful learning tool where the network can share insights from them. Hearing what callers say about why they called often reveals which ad or page message is working, and which is attracting the wrong audience.
Reading your reports
Good reporting shows calls in real time with the time, source, caller location, duration, and status of each call. Focus on these measures:
- Payable rate: the share of calls that qualify. This is the clearest measure of traffic quality.
- Average duration: rising duration usually means better-matched callers.
- Reasons for non-payment: short duration, out of area, after hours, or duplicate. Each points to a different fix.
- Cost per payable call: your spend divided by qualified calls, by source. This, not cost per call, determines profit.
Putting it to work
Before you launch, write down each campaign’s buffer, geography, hours, and duplicate window, and build your targeting around them. Use separate numbers per source, use DNI on landing pages, and check reports daily while you test.
See the typical billable durations for each vertical on our Payouts & Pricing page, learn about the LeadCallsDirect process, and read how to generate inbound calls for traffic ideas that qualify.
Ready to turn your traffic into paid calls?
Tell us about your verticals, traffic sources, and volume. If there is a fit, we will follow up with campaign terms, tracking numbers, and payout details.
Example payouts mentioned in this article are “up to” rates. Actual rates vary by campaign, geo, call quality, and volume. This article is general information, not legal advice.
