You are on a job. A customer calls.
Here is what happens next.

1. 1
   A customer calls

   After hours, or while you are on a job and cannot pick up.

2. 2
   No answer after 4 rings

   About 24 seconds: the call is marked missed, automatically.

3. 3
   The workflow fires

   The missed-call event triggers the automation, no human needed.

4. 4
   A text in seconds

   The caller gets a personal SMS with a link to book.

5. 5
   Booked

   They pick a slot. It lands in your calendar and your CRM.

Answer before the fourth ring and nothing is sent. Timings use the standard 6-second ring cycle; the text goes out about 5 seconds after the call is missed.