Missed call text back for real estate agents: the buyer who rang from the sign.

Open home enquiries arrive in a two hour window on a Saturday morning, and that is precisely when every agent in the office is standing in somebody's lounge room with a sign-in sheet.

The number on a For Sale board is not rung on Tuesday afternoon. It is rung by a person sitting in a car outside the property, on the weekend, deciding in that moment whether to bother getting out.

Meanwhile the agent whose mobile is on that board is running an open home four suburbs away, talking to a couple about the kitchen. Answering is not a matter of willingness. There is a vendor in the room.

So the two busiest hours of an agent's week are also the two hours with the lowest chance of a call being picked up, and the same thing happens again on Saturday afternoon and again at every twilight inspection.

A buyer who does not get through does not leave a message. They open the app, find the next listing in the same suburb, and ring that agent instead. The enquiry never existed as far as your CRM is concerned.

This is the part that makes it invisible. A portal enquiry lands in an inbox and leaves a record, so it gets counted and chased. A phone call that rings out leaves nothing, so it is never counted and never chased.

The buyer is also not personally attached to your listing yet. They are attached to the suburb and the price bracket, and there are four other properties in both.

What makes this worse in real estate than in most businesses

• The caller is comparing listings, not agents.

  They will happily see something else that weekend. There is no loyalty to a property they have not walked through.

• The call is the start of a relationship, not a transaction.

  A buyer for one property is a buyer for the next three, and a future vendor. Losing the call loses all of it.

• The phone number is on a public sign.

  You cannot control when it gets rung, and you have advertised it in the one place a person acts on impulse.

The buyer call is worth the listing it eventually produces, not the inspection it books. An agent who never speaks to a buyer never appraises their current home, which is where the next listing comes from.

Agencies tend to value a buyer enquiry at the commission on the property they rang about, and that undercounts it badly. Most buyers are also sellers, and the appraisal conversation starts with somebody who already trusts you.

There is a second cost that is easier to feel. The vendor paying for that campaign is watching the enquiry numbers, and an enquiry that rang out is one they never see and one you cannot report on.

The version of this where the number is genuinely small is an agency with a full-time receptionist working weekends. That is rare, and it is a much larger monthly cost than the alternative.

When a call to an agency number goes unanswered, a text goes back within seconds in the agency's own words, saying which property it is about and asking what the caller wants to know. They reply in writing and an agent picks it up between inspections.

The speed is what does the work. A buyer sitting outside a property who gets a reply before they have driven off stays interested. The same reply two hours later reaches somebody who has already booked something else.

It also arrives with the address attached, which matters when one agent is carrying six campaigns. By the time an agent reads it they know which property, which caller, and roughly what they want.

What it will not do

• It will not say anything about price.

  Not the vendor's expectation, not what something sold for, not a range. Every one of those is a conversation an agent has to have.

• It will not book an inspection.

  It can say when the next open home is, because that is published. Arranging a private inspection stays with a person.

• It cannot text a landline.

  Those calls alert the agent directly instead, so the enquiry still lands, it just lands as a notification rather than a conversation.