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

# Key Terminology

> Essential terms and concepts you need to know to use Autocalls.ai effectively

Understanding these terms will help you navigate Autocalls.ai more easily:

## [AI Assistant / Agent](/ai-assistants/what-is-ai-assistant)

A customizable bot you configure to handle inbound or outbound calls. Defines conversation style, voice, and behavior via a "system prompt."

## [Campaign (Outbound)](/campaigns/index)

A sequence or batch of calls to a list of contacts or leads. You can upload a CSV, connect Google Sheets, or integrate your CRM to launch these calls.

## [Inbound Number](/phone-numbers/types)

A dedicated phone number that customers dial to reach your AI assistant. You can get one from the platform or integrate via SIP/PBX.

## [Outbound Caller ID](/outbound-calls/caller-id)

The number displayed on the customer's phone when your AI calls them. You can rent one or verify an existing number to use as Caller ID.

## [No-Code Automation Platform](/automation-platform/introduction)

Autocalls.ai's built-in workflow platform, similar to Zapier/Make. It lets you connect triggers (like "call ended") to actions (like "send an email" or "update a Google Sheet") without writing code.

## [Tools / Integrations](/ai-assistants/settings/prompt-and-tools#default-tools)

Refers to the specialized features your AI assistant can use, like transferring a call, ending a call, scheduling an appointment, or webhooks to external apps.

## [Knowledge Base](/conversation-design/knowledge-bases)

A collection of documents (PDFs, websites, text files) that your AI assistant can reference during calls to provide accurate information and answer customer questions.

## [Post-Call Variables](/ai-assistants/settings/post-call-actions#post-call-variables)

Data extracted by AI after each call (like `status`, `summary`, `formatted_transcript`) that can be used in automations and follow-up actions.

## [Call Variables](/ai-assistants/settings/prompt-and-tools#call-variables)

Dynamic data that personalizes each call (like `customer_name`, `email`, `company`) and can be used in system prompts and automations.

## [Lead Status](/leads/index)

The current state of a lead in your system: Created, Scheduled, Processing, Completed, Rescheduled, or Max Retries.

## [Campaign Status](/campaigns/index)

The current state of a campaign: Draft, In Progress, Paused, or Completed.

## [Webhook](/api-reference/webhooks/post-call-webhook)

A URL endpoint that receives data when specific events occur (like call endings), enabling real-time integrations with external systems.

## [SIP Integration](/provisioning/sip-trunking/sip-integration)

A method to connect your existing phone system or VOIP provider with Autocalls.ai without renting new numbers.

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**Tip:** Keep these definitions in mind as you proceed through the docs. They'll pop up in various setup steps or feature explanations.