Call Tracking Number Pool Calculator

Enter your busiest-hour visitors, time on site and the pool's lease and cooldown to see how many tracking numbers dynamic number insertion needs, and the monthly rental and call cost.

Uses the same lease and cooldown defaults as Edesy dynamic number insertion. Tagging your ads first? Use the UTM link builder.

Your website traffic

Sessions, not page views. Use the peak hour from your analytics, not the daily average.

100 for all visitors. For paid traffic only, enter the share of visits that come from ads.

Average visit length. The number is held while the page is open.

Pool settings

How long a visitor keeps their number after leaving. Default 30, between 5 and 240.

Rest time before a number is shown to someone else, so late calls reach the right visit. Default 30.

Cost inputs

Rs 449 for a landline on the call tracking pricing page. Use your own number price if different.

All calls to the pool's numbers.

Each call is rounded up to whole minutes at Rs 1.00/min.

Numbers your pool needs

51 numbers

About 42 visitors hold a number at your peak, each for about 63 minutes, plus 20% headroom.

Tracked visitors per peak hour

40.0

Minutes each visitor holds a number

63.0

Number rental per month

₹22,899

Estimated monthly total

₹23,499

Rental plus calls at Rs 1.00/min, excl. 18% GST

Tracking every visitor needs the most numbers. If about a quarter of your visits come from ads, a paid-traffic-only pool needs about 14 numbers.

With a 15-minute lease and a 15-minute cooldown you would need about 27 numbers, but more late callers would go unattributed.

How this is worked out

  • Formula:Visitors in the peak hour x share tracked x (minutes on site + lease + cooldown) / 60, rounded up, plus 20%
  • Tracking fee:Rs 0. Edesy charges no tracking fee
  • Calls:Rs 1.00 per minute (forwarding rate), each call rounded up to whole minutes
  • Prices:Exclude 18% GST

How to use this calculator

Step 1

Find your busiest hour

In your analytics, look up sessions in the busiest hour of a normal week.

Step 2

Choose who is tracked

Enter 100% for all visitors, or the share of visits from ads for a paid-only pool.

Step 3

Keep or change lease and cooldown

30 and 30 minutes are the defaults. Shorter needs fewer numbers but may miss late callers.

Step 4

Read the pool size and cost

Start with that many numbers and watch the pool's Health tab for visits that found it full.

Call tracking number pool FAQ

How many tracking numbers do I need for dynamic number insertion?

Enough for every visitor holding a number at your busiest moment. Each visitor holds one while on the page, then for the lease and the cooldown. With 40 tracked visitors in the peak hour, 3 minutes on site and the 30-minute defaults, that is 42 at once, or about 51 numbers with 20% headroom.

Why does a visitor keep a number after leaving?

Many people call after closing the tab. The lease keeps the number theirs, so the call is still credited to their visit, and the cooldown stops it being shown to someone new straight away.

How can I use fewer numbers?

Show tracking numbers to paid traffic only, so organic and direct visitors keep your normal number, or shorten the lease and cooldown. Both lower the pool size; shorter windows can leave some late calls unattributed.

What happens if the pool is too small?

By default, visitors who arrive when every number is in use see your normal number and their calls are not tracked. The pool's Health tab shows how often this happened and suggests a size.

Does Edesy charge a tracking fee?

No. You pay the monthly rental for each number in the pool and Rs 1.00 per minute for calls, the forwarding rate. Prices exclude 18% GST.

Is this the same as the suggested pool size in the portal?

It uses the same idea: peak concurrent visitors plus 20%. The portal works from your real traffic once the snippet is live, so check it after a week and adjust.

Features

  • Pool size from peak-hour visitors

  • Lease and cooldown included

  • All visitors or paid traffic only

  • 20% headroom, like the pool health view

  • Monthly rental and call cost

  • Runs in your browser, no signup

Who it's for

Marketers running Google or Meta ads

Size a paid-traffic-only pool so every ad visitor who calls is credited to the campaign.

Agencies

Quote call tracking for a client site before you buy numbers.

Real estate, education and clinics

High-intent sites where most leads phone in: see what tracking every visitor would take.

Ready to set up your pool?

Create a pool in the forwarding portal under Call tracking, add numbers and paste one script tag. New accounts get a Rs 20 welcome credit.

Set up call tracking