Missed Call SMS Bot — AI generates a warm reply, Twilio sends it (n8n template)

Missed Call SMS Bot — AI generates a warm reply, Twilio sends it (n8n template)

Built this for appointment-based businesses (clinics, salons, auto shops) that lose leads when they miss a call.

How it works:

1. Phone system sends a missed-call webhook with caller number

2. AI generates a friendly SMS: “Hi there, sorry we missed your call. Reply to book an appointment!”

3. Twilio delivers it — all under 160 characters

Why this exists:

I noticed small businesses treat missed calls as lost opportunities. Most can’t afford a receptionist 24/7, but they can afford a $14 template + Twilio credits (pennies per SMS).

Tech stack:

- Webhook trigger (POST /missed-call)

- Format Data node to normalize caller info

- GPT-4o-mini for SMS generation

- Twilio for delivery

Pricing: $14 one-time on n8n Markets

Link: n8n Markets — Buy, Sell & Hire n8n Workflow Experts

Works with any PBX or phone system that can POST a webhook. Feedback welcome!