Missed Call Text Back: 21 Copy-Paste Templates and How to Set It Up

Every small business misses calls. The tech is under a sink, the front desk is checking someone out, or it's 9:40 p.m. and the office is closed. The caller rarely waits around. They dial the next business on the list.

Missed call text back is the simplest fix for that problem: when a call goes unanswered, your business phone system automatically sends the caller a text message, so the conversation keeps going instead of dying in voicemail.

This guide covers how it works, 21 short templates you can copy today, the compliance basics you shouldn't skip, and an exact setup walkthrough for HighLevel (GoHighLevel), checked against HighLevel's own help documentation in October 2026.

What is missed call text back?

Missed call text back (sometimes written "missed call text-back" or shortened to MCTB) is an automation that watches your business line. When an inbound call isn't answered within a set number of seconds, the system sends a pre-written SMS to the number that called.

A good text-back message does three things:

1. Identifies the business so the caller knows who's texting.
2. Acknowledges the miss without groveling.
3. Asks one easy question that gets the caller to reply by text, such as "What's going on with your AC?" or "What day works for you?"

Once the caller replies, a human (or an AI chat assistant) picks up the thread. The point isn't to replace a phone call. It's to stop a warm lead from going cold while you're busy.

Why does missed call text back work for service businesses?

It works because it reaches callers by text while their need is still fresh, instead of waiting for them to check voicemail or call back. You don't need statistics to see why this matters. Think about the last time you called a plumber, a dentist, or a contractor and got voicemail. Did you leave a message, or did you call the next one?

Missed call text back helps most when:

• The caller's need is urgent. A leaking water heater or a broken AC in July doesn't wait for a callback tomorrow.
• Your team is physically busy. Field techs and chairside staff can't always answer.
• Calls come in after hours. Plenty of people research and call in the evening.
• The caller prefers texting. Many people would rather type an address than read it out over a bad connection.

What it won't do: fix a business that never follows up. If texts sit unanswered for hours, you've just moved the problem from voicemail to SMS.

What should a missed call text back message say? (21 templates)

It should name your business, acknowledge the missed call, and ask one question that's easy to answer by text. These templates are written to fit in a single SMS segment. In the US, one standard (GSM-7) segment holds 160 characters. Longer messages are split into multiple segments and cost more, and an emoji or a curly "smart" apostrophe can switch the whole message to a different encoding that only holds 70 characters per segment (HighLevel: How to Calculate SMS and MMS Costs). Paste these into your tool as plain text, and re-check the length after you swap in your real business name.

Replace anything in [brackets]. Only promise response times you can actually meet.

General (any business)

1. Hi, it's [Business]. Sorry we missed your call! How can we help? Reply here and we'll get right back to you.
2. Thanks for calling [Business]. We're with a customer right now. Text us what you need and we'll reply within [15 min].
3. Hi from [Business]! We missed you, but we're here. Would you like a call back or is text easier?

After hours

4. Thanks for calling [Business]. We're closed now and open at [8am]. Reply with what you need and we'll text first thing.
5. [Business] here. Our office is closed, but reply with your name and what's going on and we'll reach out at [8am].

HVAC

6. Hi, it's [Business]. Sorry we missed you! Is your system not cooling, not heating, or something else? Reply and we'll help.
7. [Business] here. We missed your call. Is this an emergency (no heat/no AC) or a tune-up/quote? Reply and we'll get you scheduled.
8. Thanks for calling [Business]. If you smell gas, leave the home and call your gas utility or 911. For anything else, reply here.

Plumbing

9. Hi, it's [Business]. Sorry we missed you! Is water actively leaking? Reply URGENT and we'll call you back ASAP.
10. [Business] here. We missed your call. What's going on (leak, clog, water heater, other)? Reply with your ZIP too.
11. Thanks for calling [Business]. If water is spreading, shut off your main valve if you can. Reply here and we'll call you.

For eight more plumbing first texts, reply scripts for leaks and gas smells, and a workflow that alerts on-call when someone replies URGENT, see missed call text back for plumbers.

Dental

12. Hi, this is [Practice]. Sorry we missed your call! Are you looking to book, reschedule, or something else? Reply here.
13. [Practice] here. We missed you. Are you a new or existing patient? Reply and we'll help you find a time.

Dental tip: keep texts free of health details. Don't ask callers to describe symptoms or share insurance information by SMS unless your systems and agreements are set up for protected health information.

Roofing

14. Hi, it's [Business]. Sorry we missed your call! Is this about a leak, storm damage, or a new roof quote? Reply here.
15. [Business] here. We missed you. Reply with your address and a quick note on the issue and we'll set up an inspection.

Law firm intake

16. Hi, this is [Firm]. Sorry we missed your call. Reply with your name and the type of matter and our intake team will follow up.
17. [Firm] here. We missed your call. Please don't text case details. Reply with a good time and we'll call you back.

Med spa

18. Hi, it's [Spa]! Sorry we missed you. Which treatment are you interested in? Reply and we'll help you book.
19. [Spa] here. We missed your call! Want us to text you our next open times for a consultation?

Second-touch follow-ups (send once, only if no reply)

20. Hi again from [Business]. Just checking you got the help you needed. Reply anytime if we can still help.
21. [Business] here. We're holding a few openings [tomorrow]. Want one? Reply YES and we'll confirm.

A practical rule: one automatic follow-up at most. A second unsolicited nudge starts to feel like spam, and it's not worth the risk.

What compliance rules apply to missed call text back?

In the US, the main rules are registering your sending number (A2P 10DLC or toll-free verification), keeping the first text conversational rather than promotional, and honoring STOP. This isn't legal advice, but these are the guardrails most businesses should know about:

• US business texting requires registration. To send SMS from a regular local (10-digit) number through providers like HighLevel's phone system, you register your brand and campaign under A2P 10DLC. Toll-free numbers need toll-free verification. HighLevel's help docs say a text-back can fail if no number in the account is eligible to send SMS (HighLevel: Missed Call Text Back).
• Keep the first text conversational, not promotional. Replying to someone who just called you is different from blasting a promotion. Marketing texts generally need prior express written consent under the TCPA. Don't add coupons or sales pitches to your text-back message.
• Honor STOP. If someone replies STOP, they must not get more texts. Most platforms handle this automatically. HighLevel's docs note that text-back respects a contact's DND (do not disturb) settings.
• Regulated industries need extra care. Dental and medical practices should avoid collecting health information by text unless their setup supports it. Law firms should avoid inviting case details over SMS.

How do you set up missed call text back in HighLevel?

HighLevel (often called GoHighLevel) has two ways to do this: a built-in setting that takes about five minutes, and a workflow that gives you more control. The steps below follow HighLevel's help documentation as of October 2026. Menu names can change, so check the linked docs if something looks different.

Option 1: The built-in setting (fastest)

According to HighLevel's Missed Call Text Back help article:

1. In your sub-account, click Settings (bottom-left).
2. Go to Phone System → Voice → Voicemail & Missed Call Text Back, then open Missed Call Text Back in the side panel.
3. Check Enable Missed Call Text Back.
4. Click Customize and write your message. You can insert custom values such as the contact's name, but HighLevel notes these only fill in when the system already knows the contact from an earlier interaction. For brand-new callers, write a message that reads fine without a name.
5. Send yourself a test message, then click Save.

Two settings matter here:

• Incoming call timeout. This controls how long the phone rings before a call counts as missed. HighLevel's docs say 10 to 20 seconds is typically recommended. Too long delays the text; too short can cut off staff who were about to pick up.
• Sending number. If the number the customer called can't send SMS (for example, a call-tracking number or an unverified toll-free number), HighLevel now automatically picks another eligible number in the account. That means the text may come from a different number than the one the caller dialed.

One catch: HighLevel's docs say the built-in feature sends a text for every missed call, even if the same person calls three times in a row. If that's a problem, use Option 2.

Option 2: A workflow (more control)

HighLevel's docs recommend customizing the existing Missed Call Text Back recipe in Workflows if you want to avoid duplicate texts. You can also build it yourself with the Call Details trigger (HighLevel: Workflow Trigger – Call Details):

1. Go to Automation → Workflows and create a new workflow (or start from the recipe).
2. Add a trigger: under Events, choose Call Details.
3. Add filters: Call Direction = Incoming, and Call Status = busy, voicemail, and no-answer (choose the outcomes you want).
4. Optionally restrict it with In Phone Number if you have several business lines.
5. Add a short Wait step so the text doesn't land while the caller is still hanging up.
6. Add a Send SMS action with your template.
7. Add an internal notification (SMS, email, or app notification) to whoever should follow up.
8. Test with a real unanswered call, check the workflow's enrollment history, then publish.

To stop repeat texts, HighLevel suggests adding a longer wait (they mention roughly 20 minutes) or using tags such as "1st call" and "2nd call" to filter repeat callers.

How much does missed call text back cost in HighLevel?

Missed call text back itself isn't a separate add-on. You pay for the texts and phone number as usage, which in the US works out to about a penny per single-segment text. From HighLevel's Phone System Pricing & Billing Guide, as of October 2026 (US rates):

So each single-segment text costs about a penny once carrier fees are added. Those usage charges sit on top of your HighLevel subscription, which starts at $97/month for the Starter plan according to HighLevel's pricing page (October 2026).

Should you use missed call text back or an AI receptionist?

Use text-back as the floor and an AI receptionist when you need calls answered live. Here's how the two compare:

Many businesses run both: the AI receptionist answers after hours, and text-back catches anything that slips through. In HighLevel, a Voice AI agent can be deployed in a "Use as Backup" mode that only picks up when the primary call path doesn't answer (HighLevel: Create, Test, and Deploy a Voice AI Agent). We cover that setup in our AI receptionist guide for HVAC and plumbing companies. If you're also weighing a human answering service, see our cost comparison of AI receptionists, answering services, and voicemail.

What are the best practices for missed call text back?

Keep it short, specific, honest about response times, and routed to someone who actually replies:

• Keep the message under 160 characters and free of emojis or curly quotes.
• Name the business in the first few words.
• Ask one question that's easy to answer by text.
• Promise only the response time you can keep, and keep it during busy season too.
• Route replies to a person who checks them, with a notification on their phone.
• Send at most one automatic follow-up.
• Include safety instructions for real emergencies (gas, flooding) where they apply.
• Test with a phone that isn't already saved as a contact.
• Review the conversations weekly and rewrite messages that don't get replies.

FAQ

Is missed call text back legal? Texting someone who just called your business is generally treated differently from unsolicited marketing, but you still need registered sending numbers (A2P 10DLC or toll-free verification in the US), you must honor opt-outs, and the message shouldn't be a sales promotion. If you're unsure, ask a lawyer who handles TCPA questions.

Will it text landlines? No. If the caller used a landline, the text won't be delivered. In HighLevel, charges apply for delivery attempts even if a message can't be delivered, according to its phone pricing guide.

Can I use WhatsApp instead of SMS? HighLevel's docs say the SMS-based feature doesn't support WhatsApp, but HighLevel has a separate "Missed Call WhatsApp Back" feature.

Do I need HighLevel for this? No. Many phone systems and field-service tools offer some version of text-back. This guide walks through HighLevel because it combines text-back with workflows, a CRM, and an AI voice agent in one place.

Sources (checked October 3, 2026)