n8n Multi-Channel Auto-Reply Setup

I need an n8n workflow (or set of workflows) that can pick up every incoming interaction on three fronts—Calls, WhatsApp and Gmail—and respond instantly with dynamic, keyword-driven messages. At the same time, each interaction should be logged so I can track new leads and receive real-time alerts.

Scope of work
• Calls: when someone rings, capture the caller ID and any IVR input, fire back an automatic voice or SMS response that adapts to detected keywords, then store the lead details.
• WhatsApp: monitor inbound chats through the Business API, reply immediately with a keyword-based template, save the full conversation plus contact data.
• Gmail: watch the inbox for new mails, send a smart auto-reply that references the subject or body keywords, and file sender info plus message content for later use.

All three channels must perform these shared actions:
– Auto-replies that change according to keywords, not static canned text.
– Lead/data capture into a structured place of your choice (Sheet, database or CRM—let me know what fits best).
– Notification alerts so I’m pinged right away when a new lead comes in.

Deliverables
1. Fully documented n8n workflows covering the three channels above.
2. Connection instructions and environment variables clearly outlined so I can plug in my own credentials.
3. Quick video or text walkthrough showing how to edit keywords and response logic.

Acceptance criteria
• Each channel triggers reliably on new activity and answers in under 30 seconds.
• Keyword rules can be updated without touching code.
• All collected lead fields appear correctly in the data store and in the alert message.

If you’ve already linked n8n with Twilio, WhatsApp Business API, or Gmail before, that’s exactly the experience I’m after. Let me know the estimated setup time and any external services we’ll need to activate, and we can get started right away.