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📞 Leads, calls, texting and WhatsApp · Lesson 2 of 4

Missed calls: forwarding, call-back and text-back basics

8 min readBeginnerUpdated

You'll learn

  • Three layers for handling calls you can't answer
  • How missed-call text-back works under the hood
  • Why missed calls can cost you on Google Local Services Ads
  • The consent and compliance basics before you text a caller

If you're a plumber lying under a sink, or a dentist with your hands in someone's mouth, you're going to miss calls. You don't have to lose the caller. This lesson sets up three layers (forward, text back, call back), shows how the text-back part works under the hood, and covers the rules for texting someone who just called you. For text-back message examples and a setup checklist, see our guide to missed-call text-back.

Not legal advice. The compliance section is general information about US rules.

Why missed calls matter

A missed call is often a lead at its hottest. Someone has a problem right now and the phone is already in their hand. Hit voicemail, and plenty of them just call the next name on the list. The speed-to-lead lesson covers the research on response time. With calls, the clock just runs faster.

If you advertise on Google Local Services Ads (LSAs, the pay-per-lead ads covered in the ads track), there's a direct cost too. Google's "How leads work" page says you're charged for a missed call when "you missed a phone call during your business hours and the customer stays on the line for more than 20 seconds." And Google's LSA ranking page says "missed calls may negatively affect your responsiveness", which is one of the factors in how LSAs are ranked. Put those together and a missed LSA call can mean paying for a lead you never spoke to, and ranking a little lower next time.

For a rough sense of scale, one vendor data point: in Clio's 2024 secret-shopper study of law firms (vendor data, reported by the ABA's Law Practice Magazine), only 40% of firms answered the phone.

Layer 1: forward before you miss

  • Ring groups: your business number rings several phones (office, owner, on-call tech) at once or in sequence.
  • Conditional call forwarding: your phone carrier forwards calls only when you're busy or don't answer within a set number of rings. Codes and settings vary by carrier and plan; ask yours or check its help pages.
  • Answering service: a person answers in your business name, takes details and passes them on.
  • Business hours routing: after hours, route to an on-call phone or a clear voicemail greeting that says when you'll call back.

Layer 2: text back automatically

Missed-call text-back sends the caller a text within seconds of an unanswered call: "Sorry we missed your call. This is [Business]. How can we help? Reply here or we'll call you back shortly."

How it works

Most systems work the same way:

  1. Calls arrive on a number the software controls. Either your published number is hosted with the provider, or your carrier forwards unanswered calls to a provider number.
  2. The system tries to connect the call to your phones for a set time. With Twilio's voice API, for example, the <Dial> instruction has a timeout (default 30 seconds) and reports a status such as no-answer, busy or completed when the attempt ends.
  3. On no-answer or busy, the software sends a text from the same business number to the caller's number.
  4. Replies land in a shared inbox where staff can continue the conversation.

Watch for two catches:

  • Landlines can't receive texts. Services like Twilio's Line Type Intelligence can tell you whether a number is mobile, landline or VoIP before you send.
  • US business texting needs registration. If you send from a regular 10-digit US number through software, you must register under A2P 10DLC first, or messages get blocked. See Texting customers in the US.

Layer 3: call back (a person, soon)

The text buys you a few minutes, but someone still has to call. Set a rule: during business hours, every missed caller gets a call back within a fixed time, say 15 minutes. Whoever is on duty owns that list.

A few habits help:

  • Call back from the same number they called, so they recognize it.
  • If they replied to the text with details, read it first and open with that.
  • Log the outcome (booked, quote sent, no answer) so nobody calls the same person three times.

A local example: the solo plumber

A one-person plumbing business gets about 15 calls a day. Most of the time the owner is on a job when they come in.

Before: calls go to voicemail. Few callers leave a message. The owner calls back at lunch and in the evening, and by then a lot of them have booked someone else.

After:

  1. Calls ring the owner's phone for 20 seconds, then a family member's phone in the office.
  2. If neither answers, the caller gets a text in seconds: "Hi, this is Dave at Riverside Plumbing. Sorry I missed you, I'm on a job. What's the problem and your address? I'll call back within 30 minutes. Reply STOP to opt out."
  3. Replies show up on Dave's phone in one inbox. Between jobs, he calls back the urgent ones first.

Now Dave can sort by urgency. A burst pipe gets a call in 10 minutes. A quote for a new faucet waits until the evening. We can't tell you how many more jobs that books; it depends on the business. It is easy to measure, though: track missed calls, texts sent, replies and bookings for a month.

Texting someone who just called you feels natural, but it's still regulated. The general points:

  • Keep the automatic text non-promotional. One text that responds to their call ("sorry we missed you, how can we help?") is very different from adding them to marketing texts. The CTIA Messaging Principles (the US wireless industry's guidelines) treat a back-and-forth started by the consumer as "conversational" messaging with implied consent, while promotional texts need "express written" consent.
  • Identify yourself with your business name in the first text.
  • Include opt-out wording ("Reply STOP to opt out") and honor it. Under FCC rules, consent can be revoked by any reasonable method, including replies like "stop", "quit", "end", "revoke", "opt out", "cancel" or "unsubscribe", and must be honored within 10 business days. Most texting platforms block further texts automatically after STOP.
  • Describe the use case accurately in your 10DLC registration: "When a customer calls and we can't answer, we send one text from the same number inviting them to reply."
  • Don't reuse the number for marketing unless the person has separately given the right consent.
  • Texts to landlines fail, and texts to numbers that called by mistake should stop if they say so.

Does a missed-call text-back need prior consent under the TCPA (the Telephone Consumer Protection Act)? That depends on how it's sent and what it says, and there's no one-line answer. The careful route is a single, non-marketing reply that names you and offers an opt-out. If you plan follow-up sequences or promotions, talk to a lawyer first.

Outside the US: the UK's PECR rules (enforced by the ICO) and Australia's spam rules (enforced by the ACMA) are aimed mainly at marketing and commercial messages, and the UK rules cover texts and messaging apps. Use the same habits everywhere: say who you are, keep it non-promotional, and make opting out easy. In Australia, the ACMA requires commercial messages to identify the sender and honor unsubscribe requests within 5 working days.

Do this now

What is missed-call text-back?

An automatic text sent to someone whose call you didn't answer, usually within seconds, inviting them to reply by text or telling them when you'll call back.

Do I need consent to text someone who called me?

It depends on how the text is sent and what it says. The conservative approach is one non-promotional reply that names your business and includes opt-out wording. Promotional texts need stronger consent (CTIA's guidelines call for express written consent), so get legal advice before sending follow-ups or offers.

Will missed-call text-back work for landline callers?

No. Texts to landlines fail. Some providers can check the line type first and skip landlines.

Do I pay for missed calls on Google Local Services Ads?

Google says you can be charged when a call is missed during your business hours and the caller stays on the line for more than 20 seconds.

Sources

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