AI Phone-Calling Personal Assistant for Telegram (n8n Workflow) Voice + Text • OpenAI • Pinecone • Google Sheets • Phone, Email & Calendar Agents

This product is a fully configured n8n workflow that gives you a real AI personal assistant inside Telegram.

Your assistant (Emily) can:

• Listen to text or voice messages you send on Telegram
• Convert voice notes to text using OpenAI Whisper
• Use your contact database in Google Sheets to find phone numbers & emails
• Call dedicated sub-workflows to make real phone calls (Phone Call Agent)
• Trigger an Email Agent to send emails on your behalf
• Trigger a Calendar Agent to schedule meetings or update events
• Query your company knowledge base stored in Pinecone using OpenAI embeddings
• Remember the context of the conversation with session memory

All of this happens automatically through a single Telegram chat.

What this workflow does

• 🧠 AI Personal Assistant (Emily)
  A LangChain-style agent with a carefully engineered system prompt. Emily never does the task herself – she delegates to the correct tool:
  • Phone Call Agent (sub-workflow)
  • Email Agent (sub-workflow)
  • Calendar Agent (sub-workflow)
  • Knowledge Base (Pinecone + OpenAI)
  • Contacts Data (Google Sheets)
• 🎙️ Voice & Text Support
  • Text messages go directly to the assistant.
  • Voice messages are downloaded from Telegram, transcribed to text via OpenAI, then passed to the assistant.
• 📒 Contact-Aware Actions
  • The assistant reads from a Google Sheets Contact database.
  • It verifies phone numbers and email addresses before using them.
  • It refuses to send to fake or placeholder emails.
• 📞 Phone Call Automation
  • When you say things like “Call my accountant and ask about…”
  • The assistant looks up the contact, prepares the full instruction payload, and calls the Phone Call Agent workflow with all details (name, type, instructions, phone number, purpose, tone, etc.).
• 📧 Email Automation
  • Ask it to send an email and it delegates to the Email Agent workflow.
  • Always signs emails as “Damian” (or your name after you customize it).
  • Sends only to real contacts in the sheet.
• 📆 Calendar Automation
  • “Book a call for tomorrow at 3 PM with John” → delegated to the Calendar Agent to create/update events.
• 📚 Knowledge Base (RAG)
  • Uses OpenAI embeddings + Pinecone to search your SOPs / documents.
  • Perfect for company procedures, FAQs, scripts, or call guidelines.
• 🧠 Conversation Memory
  • Uses a window buffer memory indexed by Telegram chat.id, so your assistant remembers context per user/session.

Tech Stack

• n8n (self-hosted or cloud)
• Telegram Bot (Telegram Trigger + Send/Download nodes)
• OpenAI (Chat, Embeddings, Audio Transcription)
• Pinecone (Vector Store for your Knowledge Base)
• Google Sheets (Contacts database)
• Sub-workflows for:
  • Phone Call Agent
  • Email Agent
  • Calendar Agent

You get a ready-to-import .json workflow with all nodes wired together.

Ideal Use Cases

• Solo founders & creators who want a real personal assistant powered by AI
• Agencies that want to offer AI assistants that make calls, send emails, and manage calendars
• Internal company tools for handling routine communication and scheduling
• Anyone building AI operator / AI agent products on top of n8n

What’s Included

• ✅ Full n8n workflow JSON (Your Personal Assistant AI Agent That Makes Phone Calls)
• ✅ Preconfigured agent prompt with role, tools, rules & examples
• ✅ Integration with:
  • Telegram (text + voice)
  • OpenAI Chat + Embeddings + Audio
  • Google Sheets Contacts
  • Pinecone Vector Store
  • Phone Call, Email, and Calendar sub-workflows
• ✅ Clean, commented logic for:
  • Detecting message type (text vs voice)
  • Error handling for unsupported messages
  • Session-based memory per chat

Requirements

• n8n account (cloud or self-hosted)
• Telegram Bot token
• OpenAI API key
• Pinecone account + index
• Google Sheets with your contacts
• Three n8n sub-workflows:
  • Phone Call Agent
  • Email Agent
  • Calendar Agent