Building your first AI voice agent takes about 5 minutes. This article walks through every step — from naming your agent to going live on a real phone number.

Creating a new agent

Go to Agents → Create Agent. You'll land in the agent editor — a tabbed workspace where you configure everything about how your agent sounds and behaves. The builder saves automatically as you work.

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No need to do it all at once
Agents are saved as drafts automatically. Set up the basics and go live — then return to refine the system prompt, add more training material, or change the voice at any time.

Step 1 — Agent Details

On the first tab, fill in your agent's core identity:

  • Agent name — the name your agent uses when answering calls. E.g. "Jordan", "Aria", "Sam". Pick something that fits your brand.
  • Business name — what your agent refers to your business as during calls.
  • Opening greeting — the exact words your agent says when it picks up. E.g. "Thanks for calling Acme Plumbing — I'm Jordan, how can I help you today?"
  • Agent language — the primary language your agent speaks. Defaults to English.

Step 2 — Training Material

The Training Material tab is where you teach your agent about your business. It has three input methods:

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Website URLs
Enter your website and click Scrape. We extract the content and add it to your agent's knowledge base automatically.
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Documents
Upload PDF or TXT files — price guides, service lists, policies, anything useful. Max 10MB per file.
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FAQs
Add common questions and exact answers. These become baked-in knowledge the agent uses verbatim.
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Sync to Voice Agent
After adding or editing any training material, click Sync to push changes live. Always sync after edits.
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Start with your top 5 FAQs
The fastest route to a useful agent: scrape your website for context, then manually add the 5 questions callers ask most. Real calls will reveal the next 5 to add.

Step 3 — Agent Setup

The Agent Setup tab is where you write your system prompt — the master instructions that define how your agent behaves on every single call. A well-written system prompt is the single biggest factor in agent quality. It should cover:

  • The agent's role and personality
  • What services it handles and what it escalates
  • How to handle emergencies or urgent requests
  • What information to capture from every caller
  • How to close the call politely

A good starting point: use the default template provided, then replace the placeholder text with your real business details. See Writing your system prompt for a full guide and examples.

Step 4 — Choose a voice

Still in Agent Setup, scroll to the Voice section. Six voice characters are available — listen to each sample before choosing. Pick the voice that matches your brand and the expectations of your callers.

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Voice character matters more than you'd expect
Callers form an opinion in the first 3 seconds. A confident, warm voice reduces hang-ups significantly. Play all six samples and pick the one you'd want answering your own calls. See Choosing a voice for industry recommendations.

Step 5 — Telephone

The Telephone tab is where you assign a phone number to this agent. If you haven't got a number yet, go to Phone Numbers to provision one — it takes under a minute. Once assigned, every call to that number routes directly to this agent.

Step 6 — Test in your browser

Before forwarding your real business number, use Test Mode to have a live voice conversation with your agent directly from the browser — no phone needed. Click Start Voice Call and talk to your agent as if you were a customer.

voiceforge.pro/agents/agent_xxx — Test Mode
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Ready to talk?
Click below to start a live voice call with Jordan.
📞 Start Voice Call
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Be a difficult caller
Ask about something it doesn't know. Interrupt mid-sentence. Ask a question you didn't add to the FAQs. These edge cases reveal gaps before real customers find them.

Going live

Once your agent passes the test, forward your existing business number to your VoiceForge number. See How to forward your phone number for step-by-step instructions for every carrier, iPhone, and Android. From that moment, your agent answers every inbound call.