> ## Documentation Index
> Fetch the complete documentation index at: https://docs.teamfollowup.ai/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Use the public API base URL: https://api.teamfollowup.ai/api.
> Authenticate public API requests with Authorization: Bearer YOUR_API_KEY.
> Use product-owned terms: agents, calls, campaigns, contacts, phone numbers, billing, and configuration.

# What a campaign is

> A campaign turns a list of people into phone calls. It decides who gets called, when, how often, and from what number.

An agent is a great caller with nothing to do. A **campaign** is what gives it
work. If the agent is the voice, the campaign is the plan behind the calls.

A campaign answers the practical questions:

* **Who** do we call?
* **When** are we allowed to call them?
* **How often**, and how far apart?
* **What number** shows on their phone?
* **What happens** after each call?

You set these once. Then the campaign feeds people to the agent, one at a time,
and the calls just happen.

## One agent, one campaign

Each agent comes with its own campaign, joined at the hip. The agent handles the
talking. The campaign handles the logistics. You'll set up the agent and its
campaign together.

## The pieces of a campaign

Each part has its own short guide:

<CardGroup cols={2}>
  <Card title="Who gets called" icon="users" href="/campaigns/audience">
    How people join the call list, and how they come off it.
  </Card>

  <Card title="When and how often" icon="clock" href="/campaigns/scheduling">
    Your calling hours, timezones, and how many times you try.
  </Card>

  <Card title="The phone number" icon="phone" href="/campaigns/phone-numbers">
    The caller ID people see when you call.
  </Card>

  <Card title="After the call" icon="git-branch" href="/campaigns/after-the-call">
    What happens next based on how the call went.
  </Card>
</CardGroup>

## It starts switched off

This is the most important thing to know: a brand-new campaign is **paused**. It
will not call anyone until you turn it on. That's on purpose, so you can set
everything up, check it, and test it with zero risk. When you're ready, you flip
it live. See [Going live](/campaigns/going-live).