Automate Lead Qualification with RetellAI Phone Agent, OpenAI GPT & Google Sheet

👉 Build a Phone Agent to qualify outbound leads and schedule inbound calls Who is this for? This workflow is designed for sales teams, call centers, and businesses handling both outbound and inbound lead calls who want to automate their qualification, follow-up, and call documentation process without manual intervention. It’s ideal for teams using Google Sheets, RetellAI, OpenAI, and Gmail as part of their tech stack. Real-World Use Cases 🛍 E-commerce – Instantly handle product FAQs and order status checks, 24/7. 🏬 Retail Stores – Share store hours, directions, and return policies without lifting a finger. 🍽 Restaurants – Take reservations or answer menu questions automatically. 💼 Servi

Help me set up the n8n workflow "Automate Lead Qualification with RetellAI Phone Agent, OpenAI GPT & Google Sheet" (https://n8n.io/workflows/3912). It uses: Google Sheets, HTTP Request, Twilio, Gmail, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.