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How many calls you miss, and what it costs you

A missed call leaves no trace anywhere except in your line’s log: no message, no ticket, no follow-up. Yet your carrier’s statement carries the exact number of unanswered incoming calls, the time of each and how long it rang. It is the only reliable measurement, and you already have it.

Updated September 4, 2026

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The one figure in your business that nothing reports

Everything else that fails in a company leaves a trace. A lost quote stays in the software. An abandoned basket shows up in the statistics. An unpaid invoice appears in an aged balance. The call nobody answered produces nothing at all: no line on a dashboard, no follow-up, no conversation in a meeting. It disappears the moment the caller hangs up.

That invisibility has a direct consequence: the subject never gets dealt with, not because anyone decided it was unimportant, but because no figure puts it on the table. People invest in what gets measured. Phone reception is almost always judged on instinct, against cost lines that do have numbers.

The paradox is that the measurement exists, that it is exact, and that it costs nothing. Your carrier records every incoming call, answered or not, with its timestamp. Nobody goes and gets it because nobody thinks to ask, not because it is hard to obtain.

Where to read the figure, and how long it takes

The document is called an itemised statement, a call log or a history depending on the carrier, and it is usually available from the customer portal without asking anyone. It lists every incoming call with its timestamp, the calling number and its duration. Pull a full month rather than a week: a week catches a bank holiday or an absence and sends you to the wrong conclusion.

The column that matters is the one that separates an answered call from one that was not. Depending on the carrier it carries an explicit status, or you have to infer it from the duration: zero, or a few seconds, means nobody picked up. That is the only technical reading in the exercise, and it takes a minute to grasp.

The whole job runs to about ten minutes once the file is open. This is not a study, it is a count, and it does not need to be accurate to the decimal: you are after an order of magnitude that will either reassure you or surprise you. Either way you will have learned something you did not know this morning.

Four moves, in this order. No tools, no spreadsheet required, one month of statement is enough.

  1. 1 Pull the detail of incoming calls over a full month from your carrier’s customer portal.
  2. 2 Work out how the statement marks an unanswered call: a status, or a zero duration.
  3. 3 Set aside the numbers you recognise as cold callers, and internal calls.
  4. 4 Count what is left, and note the time on each line. It is that second figure that does the work later.

The four moments where they cluster

Missed calls are almost never spread evenly through the day. They bunch into a few slots, and that is good news: a concentrated problem can be dealt with, a diffuse one can only be endured. The statement makes them appear on their own as soon as you sort by hour.

The biggest seam is also the least obvious. It is not the closed hours, which everyone suspects first, but the busy ones: you are with a customer, under a bonnet, in the room, in consultation. The phone rings while you are doing your job, and there is no version of your day in which you pick up at that moment.

A fourth case does not show up in the total and is only visible in the timestamps: two calls seconds apart, the second of which fails because the line is busy with the first. It counts as a missed call, and it is fixed neither by opening hours nor by organisation.

What sorting by hour brings out
The momentWhy nobody picks upWhat it means
While you are workingYou are with a customer; there is no version of the day where you answerThe main seam, and the one no timetable corrects
The lunch breakIt is precisely the window your callers are free to ring inA peak that lands exactly when nobody is there
Before opening, after closingNobody is there, by constructionSolved by cover, not by internal organisation
The second simultaneous callThe line is busy with the firstInvisible in the total, visible by comparing timestamps

The hour of your missed calls also settles the choice between two families of solution, which is the subject of the guide on virtual switchboards and outsourced call answering. Here it only serves to measure.

What a missed call is worth to you, using your own numbers

No published figure works here, least of all a sector average. A missed call at a locksmith’s, a physiotherapist’s and an estate agency are not the same amount, and the only value that counts is the one you get with your own average order value. The calculation runs to five moves and is done with your accounts, not ours.

Two precautions make it honest. The first is to strip out the repeat attempts: somebody trying three times in ten minutes represents one need, not three. The second is not to convert every missed call into lost business. Some were ringing with a question, an opening time, a piece of information, and would have rung back or dropped in. It is the share that was ringing to book or to ask for a quote that is genuinely lost.

The result almost always surprises, one way or the other, and that is exactly why it is worth putting on the table. If it is low, you have just saved yourself a subscription you do not need. If it is high, you have a figure to set against the cost of a solution, which is an entirely different conversation from « is it worth it ».

The calculation, in five moves. It needs only the statement and your real average order value.

  1. 1 Count the unanswered incoming calls over the month, cold callers set aside.
  2. 2 Strip out repeat attempts from the same number within the hour: that is one need, not several.
  3. 3 Estimate the share that was ringing for an appointment or a quote, rather than for information. On most small-business receptions, it is the majority.
  4. 4 Multiply by your average order value, the one your accounts give you and not the one in your head.
  5. 5 Bring the result back to a month, so it compares against a subscription rather than against a hunch.

What voicemail and the evening call-back do not catch

The three usual reflexes have been around a long time and they work, provided you know which part of the problem they work on. None of the three touches the main seam, the busy hours, and that is why a reception can look equipped while losing as many calls as before.

Voicemail assumes the caller agrees to wait for your call-back. Those who already know you do. A prospect looking for an available professional does not: they have a list of numbers and they work down the list. An answerphone does not record a call, it records a loss, politely.

The end-of-day call-back suffers from the same mismatch. It works perfectly for what can wait, a quote, a question about lead time, a clarification. It arrives too late for what cannot wait, and appointments are part of what cannot: by six in the evening, the caller took a slot elsewhere at three.

The three reflexes, and the share of the problem they cover
The reflexWhat it catchesWhat it lets through
VoicemailCallers who know you and agree to waitThe majority, who leave no message and dial the next number
The end-of-day call-backWhat can wait: a quote, a lead time, a clarificationThe appointment, already taken elsewhere that afternoon
Forwarding to a mobileThe calls that land when you are able to answerExactly the same ones as before, since you are still busy at the same hours

All three share the same blind spot: none of them gives the caller a slot while they are still on the line.

What is genuinely recoverable, and what is lost either way

Not all missed calls are equal, and aiming for a hundred per cent answer rate is an expensive way of framing the problem badly. Part of the volume deserves no investment at all, another is caught up perfectly well later, and a third is lost for good in the seconds after the caller hangs up. It is that third, and only that one, that justifies doing anything.

The dividing line is simple: what can be settled later, and what needs an answer now. A question of price, an opening time, a request for a brochure survive a call-back the next day perfectly well. An appointment, an emergency, an availability asked for now do not, because the caller has an alternative a finger away.

That is also why the answer to this problem is not necessarily to buy something. If your statement shows few missed calls and a lot of simple questions, a well-made web page and a forward will do. A provider who does not tell you that is selling you something you do not need, and you have just given yourself the means to know it before they do.

What each type of missed call becomes, once sorted.

  • The booking: lost within minutes, because the caller dials the next number. It is the only category that demands an answer during the call.
  • The emergency: lost immediately, and it also leaves a lasting mark on how that caller talks about you.
  • The question about price, lead time or hours: entirely recoverable later, provided you do ring back. Voicemail is enough if you really do.
  • The cold call: set aside from the count from the start, otherwise it inflates the figure and skews everything after it.

Common questions

My carrier does not provide unanswered calls, what do I do?
Look at the duration rather than the status: an incoming line of zero or a few seconds is a call that did not connect. If the statement does not list unanswered incoming calls at all, the history on the handset or mobile receiving the calls almost always carries them, over at least thirty days.
Should cold callers be counted?
No, and it is the first sort to make. Setting them aside changes the result a great deal on heavily exposed lines. A number that calls once and never rings back, at regular hours, is almost always a cold caller.
Over what period should I measure for it to be representative?
A full month, and if your business is seasonal, one month in peak season and one quiet month. The figure that decides is the peak-season one: it is when you miss the most calls, and when each is worth the most.
And if the calculation shows I miss almost nothing?
Then you have your answer, and it saves you a cost. It is a frequent outcome for low-volume businesses or loyal customer bases, and it is worth as much as the other one. Count again in six months if your business changes.

See what it comes to for you

The pricing table and the simulator take your volume and the average length of your calls.

See pricing

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« On utilise Cantya pour prendre le relais sur nos appels quand on est déjà en intervention ou qu’on ne peut pas décrocher. C’est vraiment pratique, on évite de perdre des appels et nos clients ont toujours une réponse. Ça nous soulage beaucoup au quotidien. »
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