Worked example with assumed numbers. Not a customer.

VoiceCharm

AI Receptionist for Service Businesses

Worked ROI Example

HVAC

HVAC Team: Worked ROI Example

3-person crew with one person on the phones

$5,736

Example Monthly Gain, After VoiceCharm's Cost

35%

Assumed Missed Call Rate

Assumed Calls Per Day

$193/mo

VoiceCharm Cost

The Scenario

An assumed 3-person HVAC company that gets 20 calls on a normal day, with one office coordinator answering the phone. Heat-wave weeks run higher; this example uses a normal month.

Industry Context

HVAC demand is seasonal. When a heat wave hits, calls arrive faster than one coordinator can answer them, and a caller with no cooling is the least willing to wait. The numbers below are assumptions for a normal month, not measurements. A surge month would mean more missed calls, and VoiceCharm's cost would rise with the minutes.

→Extreme weather brings more HVAC calls at the same time

→A caller with no cooling in a heat wave is unlikely to wait on voicemail

→One coordinator can be on one call at a time

→VoiceCharm bills 50¢ a minute, so a busy month costs more and a quiet one less

The Problem

One office coordinator answers the phone. On a normal day some calls are missed while she is on another line; in a heat wave, more are. A caller who reaches voicemail can try another company. In this example 154 calls a month go unanswered.

What VoiceCharm Does Here

✓Answers several calls at once — no busy signal during surges
✓Asks whether the caller is without heating or cooling and emails you their name, number, address and answer the moment the call ends
✓Marks the email URGENT when the call is urgent
✓With Google Calendar booking turned on, books routine maintenance into the next open slot

Before & After in This Example

Without VoiceCharm

Missed calls reaching voicemail154/mo

Revenue at risk/month$59,290

Calls answered at onceOne

Lead details after a missed callNone

Staffing during peaksStretched

With VoiceCharm

Missed calls reaching voicemail0 (forwarded to the AI)

Revenue recovered/month+$5,929

Calls answered at onceSeveral

Lead details after a missed callEmailed after each call

VoiceCharm cost$193/mo

ROI Calculation

Assumptions

Calls per day20

Current missed call rate35%

Assumed job value$700

Working days per month22

Share of answered calls that become a job55%

Share of at-risk revenue won back10%

VoiceCharm pricing50¢ a minute, billed by the second, no monthly fee

VoiceCharm monthly cost$193/mo

What the Arithmetic Gives

Missed calls per month154 calls

Revenue at risk$59,290

Assumed won back$5,929 (10% of that)

Monthly gain$5,736 after VoiceCharm's $193

Twelve months of that$68,832

PaybackOne $700 job covers the month

Cumulative Gain in This Example

Period	Without VoiceCharm	With VoiceCharm
Month 1	$0	+$5,736
Month 3	$0	+$17,208
Month 6	$0	+$34,416
Month 12	$0	+$68,832

This is a worked example, not a customer. Every number in it is an assumption VoiceCharm chose, followed by arithmetic; none of it was measured. Your results will depend on your market, pricing, call volume and how quickly you call leads back. It is not a forecast or a guarantee.