# Recover missed calls and book HVAC appointments: n8n workflow

> Started by another system calling it, and works across GoHighLevel and Twilio. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/recover-missed-calls-and-book-hvac-appointments (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# Recover missed calls and book HVAC appointments

Started by another system calling it, and works across GoHighLevel and Twilio. It hands the judgement calls to Gemini. 21 steps, 2 branches: large, and worth reading before you trust it with anything live.

Large Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Frecover-missed-calls-and-book-hvac-appointments)

**21 steps** Large: read it before trusting it with anything live

**2** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 3 Model 3 Logic 3 Service 12

The steps in the order they run, from what starts it.

- 1 **When Webhook Received** Webhook *Starts it*
- 2 **When SMS Received** Twilio trigger *Starts it*
- 3 **Gemini Chat Model** Lm Chat Google Gemini *Model*
- 4 **Parse Structured Output** Output Parser Structured *Model*
- 5 **When Appointment Booked** Webhook *Starts it*
- 6 **Filter Valid Call Statuses** If *Logic*
- 7 **Check If Lead** High Level *Service*
- 8 **Lead Analyzer Agent** Agent *Model*
- 9 **Check Lead SMS Origin** High Level *Service*
- 10 **Prepare Lead Data** Set *Logic*
- 11 **Check Pipeline State** High Level *Service*
- 12 **If HVAC Opportunity Found** If *Logic*
- 13 **Check Pipeline State1** High Level *Service*
- 14 **Create Lead in HighLevel** High Level *Service*
- 15 **Send Response SMS** Twilio *Service*
- 16 **Update Contact in HighLevel** High Level *Service*
- 17 **Create Opportunity in HighLevel** High Level *Service*
- 18 **Update Lead Opportunity** High Level *Service*
- 19 **Update Opportunity in HighLevel** High Level *Service*
- 20 **Send SMS via Twilio** Twilio *Service*
- 21 **Update Opportunity Status** High Level *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 21, with 2 branches
- **Size:** Large: read it before trusting it with anything live
- **Connects to:** GoHighLevel, Twilio
- **Model:** Gemini

## Questions

What does it need to run?

An n8n account, plus your own GoHighLevel and Twilio accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 21 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 21 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Frecover-missed-calls-and-book-hvac-appointments)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[GoHighLevel](https://millionrounds.com/workflows?service=GoHighLevel#library)[Twilio](https://millionrounds.com/workflows?service=Twilio#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**Find real estate deals from Facebook groups with OpenAI** 19 steps · calls a model · Twilio](https://millionrounds.com/workflow/find-real-estate-deals-from-facebook-groups-with-openai)
- [**Text back missed calls with Twilio and OpenAI** 19 steps · calls a model · Google Sheets, Slack](https://millionrounds.com/workflow/text-back-missed-calls-with-twilio-and-openai)
- [**SMS notification system with Notion and Twilio** 18 steps · Notion, Twilio](https://millionrounds.com/workflow/sms-notification-system-with-notion-and-twilio)
- [**Match teacher substitutes and send notifications with OpenAI** 29 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/match-teacher-substitutes-and-send-notifications-with-openai)
- [**Analyze pipeline velocity & alert stuck deals with GoHighLevel** 13 steps · Gmail, GoHighLevel](https://millionrounds.com/workflow/analyze-pipeline-velocity-and-alert-stuck-deals-with-gohighl)
- [**Respond to missed calls with Twilio SMS** 12 steps · Email, Twilio](https://millionrounds.com/workflow/respond-to-missed-calls-with-twilio-sms)