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Case study›Solar · Metro Detroit · CallTools

A test file against the list they pay for every month

A metro Detroit solar call center loaded our 1,000-record test file into its regular campaign, next to the list it pays for every month. In its own dialer report, our file got 22% more agent connects per dial than that list in the same week.

Who
A Michigan solar call center
Customer type
Call center
Sells
Solar, by phone
Market
Metro Detroit, Michigan
Team
A large floor
Dialer
CallTools with rotating caller IDs
File
1,000 records
A bare suburban roof at noon with a tree’s shadow stopping short of it
+22%more agent connects per dial than the list it already buys
+22%agent connects per dial4.83% against 3.95%, same week
5.6%of our batch reached a personagainst 1.1% to 1.7% on its raw Michigan lists
1.77appointments per 1,000 dialsagainst 0.31; 7 appointments on 834 records
387,712dials on its usual listone week

Measured in the floor's own CallTools account and published with the method.

A fair test inside its own campaign

This call center sells solar across metro Detroit. It runs a big floor: one week on its usual list was 387,712 dials. That list comes from a vendor it pays every month on a locked contract. In the same week it answered 3.95% of the time.

The floor gave us a fair test. It loaded our 1,000-record file into its regular campaign, on the same dialer, with the same rotating caller IDs, and read both lists in its own dialer report.

22% more agent connects per dial

On September 15 our file got 31 human answers on 641 dials: 4.83%. That is 22% more agent connects per dial than the list it already pays for, in the same week. Measured another way, our batch reached a person 5.6% of the time, against 1.1% to 1.7% on the floor’s raw Michigan lists.

One loaded batch booked 1.77 appointments per 1,000 dials, against 0.31 on those lists. That is 7 appointments on 834 records, so read it as an early sign, not a rate.

Before us, and after

Agent connects per dial
Before3.95%387,712 dials on the list it buys
After4.83%641 dials on our file
+22%
Appointments per 1,000 dials
Before0.31its raw Michigan lists
After1.77one loaded batch
An early sign on 7 appointments

How it works

A floor this size does not need more records. It needs fewer dials that ring out on nobody. Every home we send has no panels on the roof and an active cell phone for the owner.

How this was measured
  • The floor’s own dialer performance report, human answers per outbound dial: 31 on 641 dials into our test file on September 15, 2026, against the 387,712 dials that week into the list it buys.
  • Same campaign, same dialer, same rotating caller IDs. A one-day, one-file read.
  • Appointments per 1,000 dials: one loaded batch, 7 appointments on 834 records. Too few to read as a rate.
  • Published anonymized. The floor’s name and quotes appear only with its written approval.

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