Agency Cold-Calling & Receptionist Agent

How this n8n workflow works

1. 1Every hour it picks leads flagged for a call
2. 2It builds the call context for each lead
3. 3The AI voice agent dials the prospect
4. 4After the call, AI writes a summary
5. 5Your sheet is updated and you get a Telegram recap

Who this workflow is for

• Agencies & freelancers — call your warm leads without hiring a caller; book discovery calls on autopilot.
• Any high-ticket service seller — a voice follow-up dramatically lifts conversion over email alone.
• Busy founders — the agent calls, you just show up to the booked discovery calls.

Why it matters: Warm leads go cold fast, and most founders hate cold-calling. An AI that phones every warm prospect in a natural voice, pitches the exact service they're a fit for (using the angle your system already generated), and books the call — turns a scary, time-consuming task into a background process. You wake up to booked discovery calls and clean call notes.

Inside the workflow: node by node

Every one of these nodes is explained in the ebook, with each setting, prompt and expression printed so you can copy it.

1. 1. Schedule - Due Leads — The Hourly Heartbeat
2. 2. Get Members — Read the Leads
3. 3. Select Due Leads — Pick Who to Call
4. 4. Lead Fields (Sheet) — Build the Call Context
5. 5. Place OmniDimension Call — Dial the Prospect
6. 6. Webhook - Trigger Call — Instant Call From Anywhere
7. 7. Lead Fields (Webhook)
8. 8. Mark Member Dialing — Flag the Row
9. 9. Manual Test - Due Lead — Fire a Test Call
10. 10. Sample Due Lead — A Hard-Coded Test Prospect
11. 11. Webhook - Call Result — Receive the Transcript
12. 12. Flatten Transcript
13. 13. report Genration agent — Write the Call Summary
14. 14. structurize reprot — Split the Summary into Fields
15. 15. Update Member — Write the Outcome Back
16. 16. Log Gym Activity — Record the Call
17. 17. Owner Call Summary — Telegram the Founder
18. 18. On Error — Catch Any Crash
19. 19. Error Alert — Message You the Details

Before you start

• An n8n account (Cloud or self-hosted).
• An OmniDimension account with a voice agent created and a phone number attached. You'll paste its API key into one node and set the agent's post-call webhook to this workflow.
• An OpenAI (or OpenRouter) API key — powers the summary agent (gpt-4o).
• A Google Sheets credential — the same Leads sheet from Chapters 1 & 2 (plus an RW Activity tab for the call log).
• A Telegram bot + your chat ID — the founder call summaries and error alerts.

Quick setup guide

1. 1Credentials: Add OmniDimension (API key), OpenAI/OpenRouter, Google Sheets, and Telegram (see the video table).
2. 2OmniDimension: Create a voice agent (give it your agency's pitch + a "book a discovery call" goal), attach a phone number, and copy your API key, agent ID and from-number ID.
3. 3Import the workflow: . Reconnect every credential. Put your Sheet ID on all Google Sheets nodes, your chat ID on both Telegram nodes, and your API key + agent ID + from-number ID in Place OmniDimension Call.
4. 4Wire the webhook back to OmniDimension: Set the agent's post-call webhook to this workflow's /rwcallresult URL, and set the same URL in the call node's callbackurl body.
5. 5Test: Use Manual Test - Due Lead with your own number, take the call, then confirm the lead row updates, an activity row is added, and you get the Telegram summary. Then Activate.

What success looks like: Warm leads get a natural, on-message phone call, discovery calls get booked, and your CRM + Telegram fill with clean call outcomes — no dialing required.

Common problems and fixes

Frequently asked questions

More workflows in “Marketing Agencies”

• Chapter 1: Agency Lead Hunter
• Chapter 2: Cold Outreach Engine
• Chapter 4: Discovery Booker & Proposal Sender
• Chapter 5: Agency Manager Bot & Pipeline