# Text back every missed call with a booking link
By The Workshaped Lab · Tier: Quick win · Industry: Construction & Trades, Field Service, Healthcare · Function: Sales & Leads · Mode: Human approval · Autonomy: Act with approval · Prompt tested: 2026-10-14 (gpt-5-mini, synthetic sample, checked by hand)
Provenance: Idea, prompt tested on synthetic data. Tools: Business phone with SMS (e.g. OpenPhone, Google Voice, your VoIP), Booking link, Any chatbot

When you're on a roof or under a sink, calls go to voicemail and the caller rings the next company. An automatic text within a minute keeps the lead warm and gets you the details before you call back.

## The problem
Trades and small service businesses miss a large share of calls during jobs. Most callers don't leave a voicemail; they try the next name on the list. By the time you call back at lunch, the job is gone.

## Why it works
Most business phone systems can already send an automatic reply to a missed call; the work is writing messages that sound like you, get the useful details (what, where, how urgent) and don't promise anything you can't keep. A chatbot is good at drafting and tightening those messages. Sending stays inside your phone system's own auto-reply, which you control.

## Who it's for
Plumbers, electricians, HVAC, cleaners, clinics and any business where the person who answers the phone is often busy.

## Step by step
1. Check your phone provider supports missed-call auto-text (most VoIP apps do; some need a paid plan).
2. Write the first text: who you are, that you'll call back, a booking link, and one question for urgent jobs.
3. Write a short follow-up for replies that ask about price or availability, used by a person.
4. Turn on the auto-text only during working hours; use a different message after hours.
5. Log missed calls and replies; call back in order of urgency.
6. Review a week of replies and tighten the wording.

## Pitfalls to avoid
- Texting without consent rules: US numbers need business texting (A2P 10DLC) registration with most providers, and opt-out wording ("Reply STOP").
- Never quote a price or a time slot in an automatic text.
- Don't auto-text numbers you've blocked or existing customers mid-dispute; use your provider's exclusion list.
- Emergency trades: tell callers to phone again or call 911 for gas leaks or flooding, not to wait for a text.

## Free kickstart prompt (paste into Claude, ChatGPT or Grok)
```
I run a [TRADE] business in [AREA]. When I miss a call, my phone system can send one automatic text.
Write me:
1. The automatic text (under 300 characters): my business name, that I'm on a job and will call back within [X hours], my booking link [LINK], one question to understand the job (what's wrong and the address), and "Reply STOP to opt out".
2. An after-hours version that says when I'll call back and what to do in an emergency.
3. Three short replies I can send by hand when someone answers: asking about price, asking for the earliest slot, and an emergency.
Rules: friendly, plain words, no exclamation marks, no promises about price or exact times. Then list anything in these messages that might break texting rules where I am, so I can check it.
```

Web: https://workshaped.ai/use-cases/missed-call-text/