Handle Tamil real estate voice inquiries with OpenAI, Sarvam AI and Google Sheets

Go to Workflow
0 views
Built by Dinakar Selvakumar Dinakar Selvakumar
Created on June 07, 2026

Description

Description
This workflow builds a Tamil voice AI assistant for real estate inquiries. It handles incoming calls or messages, converts speech to text, generates AI responses, converts them back to speech, and logs lead data into Google Sheets.

What this template demonstrates
Voice-based AI assistant using STT and TTS
Conversation handling with memory
AI response generation with structured prompts
Lead capture and logging
Escalation to human agents

Use cases
Real estate enquiry automation
Voice-based customer support
Lead qualification systems
AI call assistant for small businesses

How it works
• Receives input via webhook
• Converts audio to text using STT
• Detects intent and escalation conditions
• Generates response using AI
• Converts response to speech and returns it
• Logs lead data into Google Sheets

How to use
Deploy the workflow
Configure webhook endpoint
Connect OpenAI, Sarvam STT/TTS, and Google Sheets
Send audio or text requests to the webhook

Requirements
OpenAI API access
Sarvam STT and TTS API access
Google Sheets account
Public webhook endpoint

Customising this workflow
Modify AI prompt for different industries
Add CRM integration instead of Google Sheets
Adjust escalation rules
Support multiple languages
Use this Voice Call HTML File For Testing, Download it and test the agent by live conversation.

Good to know
Handles both audio and text input
Includes fallback for failed speech recognition
Maintains conversation history
Supports real-time response generation

Who this is for
Automation engineers
Real estate agencies
AI chatbot builders
Businesses needing voice assistants

Nodes Used (4)

Code
n8n-nodes-base.code
Google Sheets
n8n-nodes-base.googleSheets
HTTP Request
n8n-nodes-base.httpRequest
OpenAI
@n8n/n8n-nodes-langchain.openAi