Win more of your leads · Every business
How Many Callers Hang Up Without a Voicemail and Call Someone Else
The most repeated answer online, that roughly eight in ten callers who reach voicemail hang up without leaving a message, has no study behind it that we could trace, so the reliable number is the one in your own phone log.
At a glance
- The silent-caller rate, the share of missed callers who leave no voicemail, is the figure owners most want and the one published research has measured least; the popular 75% to 85% claims we checked cited vendors' own platforms or no source at all.
- Traceable research describes both sides of the problem: in a Pew Research Center survey of 10,211 adults, eight in ten said they generally don't answer unknown numbers, and in a peer-reviewed study of calls to 360 psychiatrists' offices, only 36% of 216 unanswered calls were ever returned.
- For an illustrative business that misses ten calls a week and gets three voicemails, the seven silent callers include about 35 lost first visits a year, or $8,750, which a one-week tally and a missed-call text can start to recover.
Where the popular number comes from, and why we left it out
Search for missed-call statistics and the same figures repeat across many pages, most of them published by companies that sell answering services or AI receptionists, and when we followed the citations back on the pages we reviewed, the voicemail figures led either to a vendor's analysis of calls on its own platform, with no published method, or to "industry estimates" with no source named. Those numbers may be close for some businesses, but a figure that can't be traced can't be checked, so The Systems Desk doesn't use it.
What the traceable research does show is that both people on a call have learned to let it ring. Pew's survey found that most adults let unknown numbers ring and check any voicemail afterward, while a simulated-patient study in Psychiatric Services found that offices often fail to return the messages they receive; researchers posing as patients called 360 psychiatrists listed in a major insurer's directory, left messages when they could, and of 216 unanswered calls, only 36% were returned.
| Finding | Figure | Who was measured | Source |
|---|---|---|---|
| Generally answer calls from unknown numbers | 19% | 10,211 U.S. adults, 2020 | Pew Research Center |
| Don't answer, but check voicemail | 67% | 10,211 U.S. adults, 2020 | Pew Research Center |
| Don't answer, and generally ignore voicemail | 14% | 10,211 U.S. adults, 2020 | Pew Research Center |
| Unanswered calls to offices that were returned | 36% of 216 | 360 psychiatrists in three cities | Psychiatric Services, 2015 |
| Companies that never replied to a web inquiry | 23% | 2,241 U.S. companies | Harvard Business Review, 2011 |
The medical study is older and covers one specialty with long waitlists, so its exact rate won't carry over to every business; its value here is that it measured the business side of the call, which most online figures skip. Taken together, the studies suggest that a missed call is the start of a negotiation in which each side waits for the other, and the caller usually has more options.
Working out your own silent-caller rate
The calculation needs two counts from one ordinary week, the missed calls in your phone log and the voicemails left, and then three of your own figures to turn silent callers into dollars.
| Missed calls per week (Assumption (your phone log)) | 10 |
|---|---|
| Voicemails left per week (Assumption (your voicemail box)) | 3 |
| Silent callers per week (Calculated (10 − 3)) | 7 |
| Silent-caller rate (Calculated (7 ÷ 10)) | 70% |
| Silent callers per year (Calculated (7 × 50 weeks)) | 350 |
| Share who were new customers (Assumption) | 40% |
| Share of those who would have booked (Assumption) | 25% |
| First visits lost per year (Calculated (350 × 40% × 25%)) | 35 |
| Average first visit (Assumption) | $250 |
| First-visit revenue given up (Calculated (35 × $250)) | $8,750 |
Illustrative example; replace every assumption with your own counts. The figure covers only first visits, not the repeat visits a new customer would have made.
Widget note for the site: a lean calculator with three sliders (missed calls per week, voicemails per week and average first visit) and one result, "first-visit revenue from callers who left no message, per year," with the 40% and 25% shares shown as editable defaults beneath the result.
The silent-caller rate matters most, because it is the share of demand that disappears unless the business reaches out first, and a missed-call text reaches out with the business's name before the caller has finished dialing the next listing.
How you compare
- Voicemail returned: if your business returns every voicemail the same day, you are already doing better than the offices in the Psychiatric Services study, where fewer than four in ten unanswered calls were returned.
- Response time: in the HBR audit, 37% of companies replied to a new inquiry within an hour and 23% never did.
- Your own baseline: your silent-caller rate from one week of logs is the benchmark to track, and a second week after turning on a missed-call text shows how many silent callers reply.
Count missed calls and voicemails for one ordinary week, work out your silent-caller rate with the table above, and set it beside the yearly cost of a missed-call text tool.
About this research: This article draws on a Pew Research Center survey of 10,211 U.S. adults, a simulated-patient study of 360 psychiatrists published in Psychiatric Services and a Harvard Business Review audit of 2,241 U.S. companies. We reviewed widely shared missed-call and voicemail statistics and excluded those we could not trace to a published method. The worked example is illustrative.
Sources
- McClain, C. Most Americans don't answer cellphone calls from unknown numbers. Pew Research Center, December 2020. 10,211 U.S. adults.
- Malowney, M., Keltz, S., Fischer, D. and Boyd, J. W. Availability of Outpatient Care From Psychiatrists: A Simulated-Patient Study in Three U.S. Cities. Psychiatric Services 66(1), 2015. 360 psychiatrists.
- Oldroyd, J. B., McElheran, K. and Elkington, D. The Short Life of Online Sales Leads. Harvard Business Review, March 2011. Audit of 2,241 U.S. companies.
Related reading: What to Do When You Can't Answer the Phone: Missed-Call Text-Back for Service Businesses · The Real Cost of a Missed Call for Plumbers, Electricians and HVAC Shops · Why Answering Within an Hour Can Decide Who Gets the Job · The Cost of Inaction (free live session)
Work with osNOVA on the callers who never leave a message
We help owner-run service businesses count the calls they miss, find out how many callers leave no trace and set up the text and callback habits that turn more of those callers into booked first visits and fuller weeks.
Email hello@osnovaops.com about your business
Or leave your email and we will reach out
Tell us what kind of business you run and what you want more of.
Not ready to talk? osNOVA runs free live events for owners.