The simple version
With a supported phone and messaging setup, a missed call can trigger a short text from the business. It might say: “Thanks for contacting us. Sorry we missed your call. What can we help with?” The caller can reply with the details instead of trying again immediately. That reply needs to reach a person who can act on it.
What it does not do
It does not answer complex questions by itself, check real availability unless connected to that information, or turn every caller into a customer. A message should not imply that a person has already reviewed the request. Think of it as an acknowledgment and an invitation to continue, followed by an actual response from your team.
Decisions to make before switching it on
Decide which number is involved, what counts as a missed call, and whether business hours change the message. Consider repeat callers so they do not receive the same response over and over. Decide who owns replies and how quickly that person can realistically respond. Confirm messaging support and communication preferences before enabling the service.
Test the ordinary and awkward cases
Call the number and let it go unanswered. Check the text, reply to it, and find that reply where your team will work. Then test repeat calls, after-hours calls, and a customer who has already been helped. A useful setup makes the next step easier without filling the conversation with duplicate messages.