But how do these three elements (IP Camera + QR + Telegram) combine? And how can you ensure you are getting extra quality without lag or data loss?

Download the manufacturer’s app (e.g., "EZVIZ," "Mi Home," or "IPC360"). Create an account. Do not add the camera via manual searching yet.

Connect the IP camera to a USB or PoE source. Wait for the LED to start blinking red (usually indicates "Awaiting config").