Automation library · Customer support

Telegram AI voice agent - multiple language support

Started by an incoming Telegram message, and works across Google Sheets and Telegram. It puts Gemini and OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 20 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: Gemini, OpenAIRetrieval

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20 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 7Logic 5Service 7

The steps in the order they run, from what starts it.

  1. 1Telegram TriggerTelegram triggerStarts it
  2. 2Conversation MemoryMemory Buffer WindowModel
  3. 3Weather InfoOpen Weather Map ToolService
  4. 4Gemini 1.5 FlashLm Chat Google GeminiModel
  5. 5CalculatorTool CalculatorModel
  6. 6Lead CollectionGoogle Sheets ToolService
  7. 7Company InfoGoogle Docs ToolService
  8. 8Think ToolTool ThinkModel
  9. 9Check Message TypeSetLogic
  10. 10AI AgentAgentModel
  11. 11Message Type SwitchSwitchLogic
  12. 12Response Type SwitchSwitchLogic
  13. 13Get Voice/Audio FileTelegramService
  14. 14Agent InputSetLogic
  15. 15Generate Voice ResponseOpen AiModel
  16. 16Send Text ResponseTelegramService
  17. 17Download Audio FileHttp RequestService
  18. 18Prepare Audio FormatCodeLogic
  19. 19Transcribe AudioOpen AiModel
  20. 20Send Voice ResponseTelegramService

How it's built

Starts on
An incoming Telegram message
Steps
20, with 2 branches
Size
Medium: a working afternoon
Connects to
Google Sheets, Telegram
Model
Gemini, OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Google Sheets and Telegram accounts, and a key for Gemini and OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

Yes. It calls Gemini and OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 20 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 20 steps before you point it at anything that matters.