Handling Calls with WhatsApp Business API

Questions
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1

Hi everyone,

I’ve set up complex RAG systems where the WhatsApp Business API responds in text, audio, or even with images and documents, and it works well. However, I’ve never worked on a system for handling calls to the Business API number. I’d like to build a call center for interacting with knowledge. This would obviously work best with custom GPT models, as RAG systems tend to have too much latency for real-time interaction.

Does anyone have resources or insights on how to connect calls to the GPT-4o Realtime model or potentially ElevenLabs’ latest real-time models (either option works)?

Thanks in advance!

  • n8n version: 1.69.2
  • Database (default: SQLite): QLite
  • n8n EXECUTIONS_PROCESS setting (default: own, main): own, main
  • Running n8n via (Docker, npm, n8n cloud, desktop app): self-hosted in google cloud
  • Operating system: Windows10
2

hey @Kiremit

Sorry this one got lost behind. I don’t have a good answer here, just out of curiosity have you been able to implement this?

3

Unfortunately not.

4

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