It reads the number, looks the contact up in the database and works out which listing the caller means.
It asks the questions you would: budget, timing, mortgage, whether they have a property to sell. By voice, not with a form.
The enquiry enters the management software with a note, outcome and assigned agent, who is notified straight away.
Linked property, lead source, conversation note and outcomes ready to select. Nobody has to listen to the recording again to understand what the client wanted.