It is 7.40 and you are on a roof in Lewisham with a nail gun in one hand. The phone goes in your pocket. Unknown number. It rings out.
That caller had a leak, or a boiler that would not fire, or a quote they wanted by Friday. They rang the next name on Checkatrade. Most people do not leave a voicemail any more and almost nobody waits until five for a call back. I have asked a few trades to count their missed calls for a week. The answers were between eleven and thirty.
What the system does instead is small. Sixty seconds after the missed call, the caller gets a text from your number. Sorry I missed you, I am on a job. Tell me what the problem is and send a photo if you can. That is the whole message.
They reply the way people reply to a text. Two lines, a photo of the pipe, maybe a voice note. All of it lands in one WhatsApp or email thread on your phone with the number, the time they called and the photos together. You read it at the next break and answer with a thumb.
Some words get a flag. Flood, gas, smell, sparks, no heating with a baby in the house. Those messages come through with a different tone and go to the top. Everything else waits until you are off the roof.
The callers who would have gone elsewhere now have a reply from you before they find the second number. The ones with photos are half quoted before you have rung them back.
This is the kind of thing we build. It runs in your own accounts, from your own number. How many calls did you miss last week?