Conversational Telegram Bot with GPT-5/GPT-4o for Text and Voice Messages

This n8n workflow leverages a Telegram Message Trigger to activate an intelligent AI Agent capable of processing both text and voice messages. When a user sends a message in text or in voice format, the workflow captures and transcribes it (if necessary), then passes it to the AI Agent for understanding and response generation. To enhance user experience, the bot also displays a typing indicator while processing requests, simulating a natural, human-like interaction. Key Features Multi-Modal Input: Supports both text messages and voice notes from users. Real-Time Interaction: Shows a “typing…” action in Telegram while the AI processes the input. AI Agent Integration: Provides intelligent, co

Help me set up the n8n workflow "Conversational Telegram Bot with GPT-5/GPT-4o for Text and Voice Messages" (https://n8n.io/workflows/4696). It uses: Telegram, AI Agent, OpenAI Chat Model, Simple Memory, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.