Description

AI Phone Agent

This AI agent provides a complete, voice-driven customer support solution. It answers phone calls, automatically schedules appointments in Google Calendar, and uses a Retrieval-Augmented Generation (RAG) system to answer questions from your company’s knowledge base.

This agent automates the challenges of missed customer calls, manual appointment scheduling, and repetitive question answering. It frees up human staff to focus on more complex issues by automating front-line voice support.

What this workflow does

• Receives and processes live phone calls using Retell.AI.
• Transcribes call audio and uses OpenAI to analyze and summarize the conversation.
• Extracts structured data such as names, emails, and key topics from the transcript.
• Answers questions by retrieving information from a Qdrant vector store populated with your documents.
• Books appointments and creates events directly in a specified Google Calendar.
• Sends detailed call summaries and outcomes to a designated Telegram chat.
• Runs fully automated and scalable inside n8n.

Best for

• Service-based businesses needing automated call handling.
• Sales teams managing inquiries and bookings.
• Support departments handling repetitive questions.
• Solo entrepreneurs needing 24/7 voice support automation.

Requirements / Notes

• n8n environment required
• Retell.AI account and API key required
• OpenAI API key required
• Qdrant vector store setup required
• Google Calendar OAuth required
• Telegram account and Bot Token required

ROI – AI Phone Agent (Time & Cost)

Assumptions

• 15 minutes saved per customer call
  (Handling inquiries, booking appointments, basic support)
• Staff cost rate: $40/hour
• Volume: 100 calls per week
  (Conservative estimate for small to medium businesses)

⏱️ Time Saved

• Weekly: ~25 hours
• Monthly: ~100 hours
• Yearly: ~1,200 hours

💰 Cost Savings (USD)

• Weekly: ~$1,000
• Monthly: ~$4,000
• Yearly: ~$48,000

Bottom Line

The AI Phone Agent delivers over 1,200 hours of saved time annually and approximately $48,000 in cost savings by automating call handling, appointment booking, and RAG-based support, significantly improving operational efficiency and customer satisfaction.

Why this ROI is realistic

• Eliminates missed calls and follow-up time
• Automates routine scheduling tasks
• Provides instant, accurate answers to common questions
• Scales effortlessly with call volume

What you get after purchase

• AI Phone Agent (n8n Workflow)
• Instant Download
• Lifetime Access
• Step-by-step Installation Guide (PDF)

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