Voice AI bot for calls: client booking and order intake

This automation handles incoming voice calls using AI, enabling small businesses and service providers to operate without live agents. Built on n8n, Twilio, OpenAI GPT-4o, and ElevenLabs, the bot transcribes speech, generates contextual responses, and speaks them back in real time, logging all data into Google Sheets.

## Who it´s for
- Small business owners needing automated call handling
- Service companies offering appointment booking
- Food delivery services wanting to take phone orders without operators
- Businesses aiming to reduce call center workload with AI

## What the automation does
- Receives incoming calls via Twilio Voice
- Converts customer speech to text (ASR)
- Generates context-aware responses using OpenAI GPT-4o
- Converts responses to audio via ElevenLabs TTS and plays them back
- Logs full conversation history in Google Sheets
- Extracts and saves appointment or order requests separately

## What´s included
- Ready-to-use n8n workflow
- Trigger logic (HTTP webhook, Twilio voice call)
- Integrations with Twilio, OpenAI, ElevenLabs, and Google Sheets API
- Basic setup and adaptation guide

## Requirements for setup
- n8n instance (self-hosted or cloud)
- Twilio account with a voice-enabled number
- OpenAI API key (GPT-4o)
- ElevenLabs API key and selected voice model
- Google Sheet for logging conversations and requests

## Benefits and outcomes
- Reduced call center staff workload
- 24/7 handling of incoming requests
- Automatic capture of bookings and orders
- Full dialogue auditability via Google Sheets
- Scalability without hiring more agents
- Faster processing of common queries (pizza orders, service bookings, etc.)

## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via в чате.