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WhatsApp Voice Order Bot with Multilingual Support (callin.io + 2Chat)

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automaxion
(@automaxion)
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Hi everyone

:waving_hand:

If you’re looking to automate WhatsApp orders — even when users send voice notes in any language — this one’s for you.


:brain: The Problem

We had clients receiving orders via WhatsApp in voice and text form, often in different languages. Manually understanding and processing them was time-consuming, error-prone, and hard to scale.


:white_check_mark: The Goal

  • Accept both voice notes and text via WhatsApp

  • Understand the message in any language

  • Extract the ordered items

  • Respond in the same language with confirmation prompts

  • No human needed :prohibited:


:wrench: The Solution: callin.io + 2Chat + OpenAI

We built this scenario in callin.io, integrated with 2Chat (WhatsApp API) and OpenAI for transcription and content understanding.


:puzzle_piece: Scenario Overview

Trigger

  • Incoming WhatsApp messages hit a Webhook (via 2Chat).

Processing

  • If it’s a voice note → Download & Transcribe using Whisper.

  • If it’s a text → Send directly to OpenAI for parsing.

  • Detect language

  • Extract item names, quantities, and order intent

  • Generate a localized reply:
    “You ordered: 3 apples, 1 milk. Do you want to confirm this order?”

Response

  • Send smart reply back to the user using 2Chat API.

:gear:

The Full Flow


:globe_showing_europe_africa: Multilingual? Yes.

This setup works with any language:

  • Urdu, Arabic, Spanish, French, etc.

  • All processed using language detection + smart prompting

You don’t need to set any language manually — the system figures it out.


:rocket: Why We Built This

Our goal was to:

  • Help small businesses take WhatsApp orders automatically

  • Support non-English speakers and voice-first users

  • Reduce back-and-forth and manual mistakes

  • Make it feel like a “real assistant” on the other end


:brain: Bonus

  • You can extend this to store order data in Airtable, Google Sheets, or even trigger delivery flows.

  • The language + AI layer is modular — easily reusable in other bots!


Let me know if you want help replicating it, or if you want to test the prompt logic.

Happy automating!

:waving_hand:

#callin.io #voicebot

whatsapp

openai #automation

 
Posted : 07/07/2025 5:45 pm
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