Lead-gen playbook
Missed-call text-back: how it wins jobs, and the rules to follow
Missed-call text-back sends one short text to someone whose call you couldn't answer, so they hear from you in a minute instead of calling the next business. It works best as a single helpful reply, not a promotion, with an easy way to stop. Business texting in the US needs carrier registration and care about consent.
Published · 8 min read · 5 sources · By the AOS Sites team
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The missed-call text-back playbook
6 steps, in order. The detail behind each one is below.
- Decide which missed calls get a textCalls that rang out with no voicemail, from numbers that aren't hidden, at most once a day per caller. Leave out calls you already called back.
- Register your business for textingComplete A2P 10DLC registration (or toll-free verification) through your texting provider, with your legal business name and tax ID, before you send anything.
- Write one short, helpful textName the business, say sorry you missed them, ask how you can help, and offer a booking link if you have one. Nothing promotional.
- Include how to opt outEnd with "Reply STOP to opt out" and make sure STOP, and plain-language versions like "stop texting me", really stop all texts.
- Send it fast, at reasonable hoursWithin a minute or two of the missed call, and only during daytime hours in the caller's time zone. Later calls wait until morning.
- Call back the people who replyA reply is a warm lead. Answer it, or call, within minutes, and log it with your other leads.
Why does texting back a missed call win jobs?
Because the person who called you usually needs someone now, and they have a list of other numbers. If your phone rings out, the next call they make is to a competitor. A text that arrives a minute later ("Sorry we missed you, this is Riverbend Plumbing, how can we help?") tells them a real business noticed, and gives them an easy way to keep going with you.
Response time matters even for leads that wait. In a Harvard Business Review audit of 2,241 US companies, firms that contacted a web lead within an hour were nearly seven times as likely to qualify it as those that waited even an hour longer. For someone with a leak or a locked car, an hour is generous.[1]
Texts also fit how people are when they call a business: at work, in a car, standing in a flooded basement. Many will happily reply to a text when they can't take another call.
What should the text say?
One message. Plain words. Who you are, why you're texting, and an easy next step. For example:
- Use your business name exactly as customers know it.
- Respond to the call, nothing more: no coupons, no "while you're here" offers.
- Include a booking link only if bookings really work online.
- End with the opt-out instruction. Carrier guidance says standardized "STOP" wording should be used for opt-out instructions.
Sources: [2]
Don't send a second text if they don't answer. One helpful reply is a courtesy; a series of follow-ups starts to look like marketing, which has stricter consent rules (more below).
Do you need to register to send business texts?
In the US, yes, if you text from a regular 10-digit business number through software. Carriers call this A2P 10DLC: application-to-person messaging over 10-digit long codes. Twilio's documentation explains that these numbers were originally designed for person-to-person texting, and that anyone sending SMS or MMS over a 10DLC number from an application to the US must register.[3]
Registering is worth it beyond the rules: Twilio says registered traffic sees less message filtering and higher throughput, and that unregistered traffic is charged additional carrier fees.[3]
Plan for it to take a little while. On AOS Sites you fill in your details once (your legal business name exactly as on your tax paperwork, your EIN or the sole-proprietor option, address, website and a contact); the business check is often done the same day and the texting review usually takes a few days, sometimes a couple of weeks. Calls work the whole time. See why texting approval is needed.
Do you need consent to text someone who called you?
The federal Telephone Consumer Protection Act (TCPA) covers texts as well as calls. The FCC's Enforcement Bureau has said that text messages sent to cell phones using an automatic telephone dialing system are subject to the TCPA, and that such texts need the called party's prior express consent, with narrow exceptions.[4]
Carrier guidelines set expectations on top of the law. CTIA's Messaging Principles and Best Practices sort messages into three kinds: conversational (a back-and-forth the consumer starts), informational (the consumer gives you their number and asks to be contacted), and promotional (sales or marketing). They expect consent for messages generally and express written consent for marketing texts.[2]
Twilio's messaging policy gives a useful line: if a person messages you, you may respond in that exchange, but that doesn't give you consent for ongoing, recurring messages. A missed phone call isn't the same as an inbound text, which is why the safest text-back is a single, relevant reply to the call, with no marketing and an easy way to stop.[5]
- Never add people who called you to a marketing list without their express written consent.
- Keep the text-back about the call they made.
- Keep records: when they called, what you sent, and any opt-out.
How should you handle STOP and timing?
Treat every opt-out as final. CTIA's guidance says senders should let people opt out at any time, support more than one way to do it (a text, a call or an email), honor every opt-out request, and send at most one final confirmation message. It also says opt-out requests in normal language, like "please stop texting me", should be honored, not just the keyword.[2]
- STOP ends all texts from that number, immediately, everywhere you send from.
- No texts to hidden or blocked numbers.
- Daytime hours only, in the caller's time zone; calls that come in late get their text in the morning.
- At most one text-back per caller per day, however many times they call.
AOS Sites' text-back follows exactly these rules: it goes out only between 8 AM and 8 PM in the caller's time, at most once in 24 hours per caller, never to hidden numbers, and always ends with "Reply STOP to opt out." Anyone who replies STOP gets no more texts. See how the text-back works.
How do you set up missed-call text-back?
There are three common routes, and each needs the registration above.
| Route | How it works | Watch for |
|---|---|---|
| Your phone system | How it works: Some business phone services offer an auto-reply to missed calls | Watch for: Whether they handle registration and STOP for you |
| A texting app | How it works: Software watches your line and texts missed callers | Watch for: Number porting, monthly fees and who holds the consent records |
| An AI receptionist | How it works: Calls you miss forward to an AI that answers, then texts anyone who hangs up | Watch for: That it says it's an AI, and that you keep your own number |
On AOS Sites, the text-back is part of the AI Receptionist add-on, from $99 a month on any plan. You keep your own number; calls you miss forward to AOS, which answers, says it's an AI, takes the details and texts the caller back. Callers who hang up without leaving anything get the one text-back described above. The texting registration fees are included.
Before you switch anything on, call your own number from another phone, let it ring out, and read the text you get. If it isn't something you'd be glad to receive, rewrite it.
Is a text enough, or should something answer the call?
A text-back saves some calls you'd otherwise lose. Answering saves more: the caller gets their question answered and a time booked while they're still on the line. The text-back is the safety net for the ones who hang up anyway.
That's why AOS's AI Receptionist answers first and texts second. You can hear it on the demo line, and the speed-to-lead playbook covers the rest of the fast-reply routine.