Missed call text back: 18 texts to copy, the rules and a checklist
What to text a caller you missed, when to call back instead, and the US rules that apply: carrier registration, consent, STOP and quiet hours. Checked against The Campaign Registry's, CTIA's, the FCC's and Florida's own documents on October 20, 2026.
Updated · By the Julius Answer team at DealsFlow
Missed call text back is an automatic text your business sends to a caller you didn't answer, usually within a minute. It names your business, says what happens next and invites a reply. In the US, send it from a number registered with the carriers (A2P 10DLC), keep it to one reply about their call with no offer, and end with "Reply STOP to opt out." For example: "[Business name]: Sorry we missed your call. We'll call you back within the hour, or reply here with what you need. Reply STOP to opt out."
What is missed call text back, and when does it help?
Missed call text back means your phone system sends one text to a caller whose call rang out or went to voicemail, and their reply reaches you or your team.
It helps because many callers won't leave a voicemail or pick up when you call back. In CallRail's September 2025 survey of 1,000 US consumers, only 42% said they leave a voicemail when a business doesn't answer, and 82% said they would call a competitor. In Pew Research Center's 2020 survey of 10,211 US adults, only 19% said they generally answer cell phone calls from unknown numbers. A text waits until they're free.
It also keeps calls from slipping. Quo's August 2026 analysis of 16.7 million missed calls on its own platform found that 69% got no call back within 48 hours. For callers who do leave a message, use a clear business voicemail greeting.
When is a call back better than a text?
A text alone isn't enough when:
- It's urgent. A leak, no heat or a lockout needs a call within minutes; at night, an after-hours answering service can pick up instead.
- They asked for a call in their voicemail, or called several times in a row.
- The number is a landline. The text won't arrive, so call.
- It's sensitive or complex: legal matters, health questions, billing disputes, a detailed quote or an upset caller.
Is missed call text back legal? The US rules
It can be, if you register with the carriers and follow the wireless industry's consent guidelines, the FCC's rules under the Telephone Consumer Protection Act (TCPA) and your state's law. This is general information checked on October 20, 2026, not legal advice. Ask a lawyer about your own texts.
1. Register with the carriers (A2P 10DLC)
Business texts sent through software from a regular 10-digit number (A2P 10DLC) must be registered. The Campaign Registry, the hub for 10DLC registration, says in its 2026 introduction that any business texting its customers on 10DLC "is required to register." Your texting provider registers your business (the "brand") and what you text (the "campaign") for you. Unregistered texts get blocked: Twilio, for example, has blocked US texts from unregistered 10DLC numbers since September 1, 2023.
2. Follow CTIA's consent guidelines
CTIA, the trade group for the US wireless industry, publishes Messaging Principles and Best Practices for business texting. The current edition, from May 2023, sorts texts into three types:
| Type | What it is | Permission CTIA expects |
|---|---|---|
| Conversational | The customer texts first and you reply quickly with a single message | No additional permission |
| Informational | The customer gives you their number and asks to hear from you, such as appointment reminders | Agreement to texts for that purpose |
| Promotional | A sale or marketing offer; a coupon code added to another text can make it promotional | Agreement in writing |
A missed-call text doesn't fit neatly, because the caller reached you by phone, not by text. Treat it as a single reply about their call: no offer, and no second automatic text if they don't answer. CTIA also asks senders to:
- Say who they are, and not hide it behind links (sections 5.1.1 and 5.3.2). Start every text with your business name.
- Offer STOP, with standard "STOP" wording in opt-out instructions, plain words like "cancel" honored too, and one final confirmation after an opt-out.
- Give a way to get help. CTIA lists HELP instructions as one option; set an automatic HELP reply.
3. The FCC's TCPA rules: texts count as calls
The FCC said in a November 2016 enforcement advisory that texts are a kind of "call" under the TCPA: autodialed texts need prior express consent, and those with an advertisement need prior express written consent. Its rules (47 CFR 64.1200, as current on October 20, 2026) say a reply such as "stop," "quit," "cancel" or "unsubscribe" revokes consent, as does other wording a reasonable person would read as an opt-out. Opt-outs must be honored within ten business days at most, and one confirmation text with no marketing is allowed.
4. Quiet hours: 8 a.m. to 9 p.m. under federal rules
The same FCC rule bars telephone solicitations "before the hour of 8 a.m. or after 9 p.m." at the called person's local time, and applies it to texts sent to cell phones (64.1200(c)(1) and (e)). Holding late-night missed-call texts until 8 a.m. keeps you inside that window.
5. State rules can be stricter
Florida, for example, counts a text sent to solicit a sale as a "telephonic sales call" (section 501.059 of the 2026 Florida Statutes), and section 501.616 limits commercial solicitation calls to 8 a.m. to 8 p.m. local time and three in 24 hours on the same subject. Check the rules in your state and your customers' states.
Missed call text back templates
Each starts with the business name, ends with "Reply STOP to opt out." and fits one 160-character text once the brackets are filled in. Leave out emojis and curly quotes: Twilio's guide to SMS limits says they cut a single text to 70 characters.
Business hours and after hours
1. Business hours: "[Business name]: Sorry we missed your call. We'll call you back within the hour, or reply here with what you need. Reply STOP to opt out."
2. With a customer: "[Business name]: We saw your call and we're with a customer. Reply with your name and what you need, and we'll get back to you today. Reply STOP to opt out."
3. After hours: "[Business name]: Thanks for calling. We're closed and open at [8 a.m.]. Reply with what you need, and we'll call you in the morning. Reply STOP to opt out."
4. After hours, with an urgent line: "[Business name]: We're closed until [7 a.m.]. For an active leak, call [on-call number]. Smell gas? Leave and call 911. Reply STOP to opt out."
Trades: busy on a job
5. On a job: "[Business name]: This is [first name]. I'm on a job and will call you back by [3 p.m.]. Reply with your address and the problem to save time. Reply STOP to opt out."
6. New or existing job: "[Business name]: Sorry we missed you. Is this about a new job or one we're working on? Reply and we'll call you back today. Reply STOP to opt out."
Salons
7. Booking: "[Salon name]: Sorry we missed your call. Reply with the service and a day that works, and we'll send you open times. Reply STOP to opt out."
8. Book online: "[Salon name]: We're with clients right now. Book any time at [your booking page], or reply here and we'll call you back. Reply STOP to opt out."
Dental offices and clinics
9. Clinic: "[Practice name]: Sorry we missed your call. We'll call you back today. In an emergency, call 911. Please don't text health details here. Reply STOP to opt out."
10. Dental, after hours: "[Practice name]: We're closed and open at [8 a.m.], when we'll call you back. For urgent dental pain tonight, call [number]. Reply STOP to opt out."
Law offices
11. Law office: "[Firm name]: Sorry we missed your call. We'll call you back within one business day. Please don't text details of your matter. Reply STOP to opt out."
12. With a deadline: "[Firm name]: We missed your call. If you have a court date or deadline in the next two days, reply DEADLINE and we'll call first. Reply STOP to opt out."
Restaurants
13. Reservations: "[Restaurant name]: Sorry we missed your call. Book at [your reservation page] or reply with party size, date and time. Reply STOP to opt out."
14. Dinner rush: "[Restaurant name]: We're in the dinner rush. We'll call you back after [8 p.m.], or reply here with your question. Reply STOP to opt out."
Auto repair shops
15. Service: "[Shop name]: Sorry we missed your call. Reply with your vehicle's year, make, model and what's wrong, and we'll call you today. Reply STOP to opt out."
16. Closed: "[Shop name]: We're closed until [7:30 a.m.]. Broken down on the road? Get safe and call roadside help. Or reply here and we'll call you. Reply STOP to opt out."
Property management
17. Tenants: "[Company name]: Sorry we missed your call. For flooding, no heat or a lockout, call [emergency line]. Gas smell or fire? Leave and call 911. Reply STOP to opt out."
18. Rental inquiry: "[Company name]: Thanks for calling about a rental. Reply with the property and your move-in date, and we'll call you back. Reply STOP to opt out."
How fast to send it, and what to do when they reply
Send the text within a minute or two of the missed call, while the caller still has the phone in hand. When they reply:
- Treat the reply like a call. In business hours, answer within 15 minutes or call them.
- Switch to a call when it's quicker. "Can I call you in five minutes?" settles a quote faster than ten texts.
- Use your name, and note the next step in your records.
- Stop at STOP, and don't text that number again unless they text START.
HELP reply: "[Business name]: For help, call us at [number] or visit [your website]. Reply STOP to opt out."
STOP confirmation: "[Business name]: You're unsubscribed and won't get more texts from us."
What not to do
- No marketing without written consent: no coupons, offers or "follow us" links.
- No repeat texts to landlines. If a text fails or the number is a landline, call.
- No private details such as health, legal matters, card numbers or passwords, and don't ask for them by text.
- No links you don't control. Use your own website or booking page. CTIA's May 2023 guidelines say a link shortener should be dedicated to your use.
- No second text: one a day per caller at most, and none to spam, wrong or blocked numbers.
How to set up missed call text back
Choose what sends it
A phone system, texting provider or answering service that texts unanswered callers. Check which number it texts from.
Register with the carriers
Your provider registers your business and what you text. Have your legal name, address and EIN ready.
Write one short text
Business name, what happens next, an invitation to reply, then "Reply STOP to opt out."
Set the sending rules
One text a day per caller, mobiles only, 8 a.m. to 9 p.m. their time, no spam or blocked numbers.
Send replies to a person
Replies should reach someone with an alert. Decide who answers and how fast.
Test it
Call from a cell phone, let it ring out, reply to the text, then try STOP and HELP.
Missed call text back with Julius Answer
Julius Answer by DealsFlow is an AI receptionist that answers your business calls 24/7, so fewer calls are missed. For a call its receptionist couldn't take, a missed-call message is on from the start, at most once a day per caller. Until texting is on, follow-ups go by email to callers who gave an email on a call.
Texting starts after carrier registration, done once in the console (Settings, Follow-ups & texting) with your business details and EIN, or a code sent to a sole proprietor's mobile. Carrier review can take days or a few weeks. Then:
- Texts come from your Julius Answer number, not from an existing number you forward to it, and each starts with your business name.
- Automated texts go out between 8 AM and 9 PM in your time zone. STOP, HELP and START are honored.
- Replies land in the caller's record with an alert and a suggested answer; you or your team edit it or write your own, then press Send.
- It texts only callers who agreed, plus that one text after a missed call. Never marketing or bulk texts.
How to turn it on: texting and follow-ups. Everything else it does: features.
Missed call text back checklist
- Number registered for texting (A2P 10DLC) and approved.
- Business name first, "Reply STOP to opt out." last, 160 characters or fewer, no emojis.
- No offer, coupon or link you don't own.
- One text per caller a day at most; none to spam or blocked numbers.
- Sent 8 a.m. to 9 p.m. in the caller's time zone, or your state's shorter window.
- STOP, HELP and plain-word opt-outs tested.
- Replies reach a named person with an alert.
- Health, legal and payment details kept out of texts.
Answer the call before it's missed
Start a 7-day free trial: Julius Answer answers your calls 24/7, and its missed-call message is on from the start.
Frequently asked questions
Is missed call text back legal?
It can be, if you follow the rules for business texting: register your number with the carriers (A2P 10DLC), keep it to one reply about the person's call, name your business, offer STOP and leave out offers unless they agreed in writing. The FCC treats texts as calls, and some states add their own rules. This is general information, not legal advice; ask a lawyer about your situation.
Do I need to register my number to text customers?
Yes, if you text customers through software from a regular 10-digit number. The Campaign Registry says any business texting customers on a 10DLC number must register, and you register through your texting provider, not directly. Texts from unregistered numbers get blocked; Twilio, for example, has blocked them since September 1, 2023.
What should a missed call text say?
Your business name, that you missed the call, when you'll call back, an invitation to reply with what they need, and "Reply STOP to opt out." Keep it near 160 characters, with no offer and nothing private.
How soon should a missed call text go out?
Within a minute or two, while the caller still has the phone in hand. If they called late at night, hold the text until 8 a.m. their time: federal rules limit telephone solicitations, texts included, to 8 a.m. to 9 p.m. local time.
Can I add a coupon or offer to a missed call text?
Not unless the caller agreed in writing to marketing texts. CTIA's guidelines say adding a call-to-action such as a coupon code can make a text promotional, and promotional texts need written consent. Keep the missed-call text about their call.
Sources
- TCR introduction (10DLC, brands and campaigns), The Campaign Registry, 2026, checked October 20, 2026
- The Campaign Registry (home page), The Campaign Registry, checked October 20, 2026
- [U.S. A2P 10DLC] Twilio now supports a fully verified messaging ecosystem, Twilio changelog, September 1, 2023, checked October 20, 2026
- Messaging Principles and Best Practices, CTIA, May 2023, checked October 20, 2026
- Robotext consumer protection: text message senders must comply with the TCPA (Enforcement Advisory DA 16-1299), Federal Communications Commission, November 18, 2016, checked October 20, 2026
- 47 CFR 64.1200: Delivery restrictions, Electronic Code of Federal Regulations (National Archives), up to date as of October 16, 2026, checked October 20, 2026
- Florida Statutes 501.059: Telephone solicitation, The Florida Senate, 2026 Florida Statutes, checked October 20, 2026
- Florida Statutes 501.616: Unlawful acts and practices, The Florida Senate, 2026 Florida Statutes, checked October 20, 2026
- What is the SMS character limit?, Twilio, checked October 20, 2026
- Missed calls cost businesses more than ever (survey of 1,000 US consumers), CallRail, September 25, 2025, checked October 20, 2026
- Most Americans don't answer cellphone calls from unknown numbers, Pew Research Center, December 14, 2020, checked October 20, 2026
- Small business callback statistics, Quo, August 20, 2026, checked October 20, 2026
Checked 2026-10-21. Third-party prices and features change; check the vendor before you buy.