The phone system sees the calls nobody answered. Nothing else does.

A call tracking product sees the calls routed through its numbers. A practice phone system sees every call to the practice, however the caller found the number.

That includes the ones that rang out at lunchtime, the ones that went to voicemail after hours and the ones abandoned in a queue.

Those calls are invisible to almost every marketing report in existence, and they are the clearest cost in the file.

Matching the answered ones to collections and reporting the missed ones beside them gives both numbers: what the phone produced, and what it lost.

The second is frequently larger than the amount being argued about in the marketing budget.

Practices treat missed calls as a staffing metric because that is how the phone system reports them, which understates the case considerably.

Where a caller who rang once and never rang again would have been worth an examination and a course of treatment, the loss is measurable.

The report estimates it the only honest way available: by showing the collected value of callers who did get through, beside the count of those who did not.

It does not claim a specific missed caller would have produced a specific amount, because nothing can know that.

What it does is convert a count into a range a practice owner can act on, which is usually enough to change how the phones are covered at lunchtime.

A single practice number tells you somebody rang; it cannot tell you whether they came from a map listing, a directory, a mailer or a neighbour.

Distinct numbers on each listing and campaign turn the same file into a source file, and the cost of that is trivial against what is being measured.

Until they exist, the report is honest about the limitation: it will rank answered against missed and it will not invent a channel breakdown.

That is a better outcome than a report that quietly attributes every call to whatever the website said, which is the common alternative.

A practice using its phone system for recall makes a great many outbound calls to patients it already has.

Counted as a source, those would take credit for most of the practice's revenue and make every acquisition channel look ineffective.

Filtering to inbound calls, and reporting outbound recall separately as retention, keeps the two questions apart.

The recall number is worth having on its own terms — it is a real programme with a real return — but it is not marketing acquisition and should never be ranked as though it were. Mixing the two is how a practice concludes its advertising works when what actually happened is that somebody called four hundred existing patients.