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

# Add your Twilio credentials

> Connect Twilio and get inbound or outbound phone numbers for your agents.

Connect Twilio to give your agents phone numbers to call from and receive calls on. You can bring your own Twilio account, or let AgentCallback manage one for you.

## Bring your own Twilio account

<Steps>
  <Step title="Open Twilio credentials">
    In the dashboard, open the Twilio credentials settings.
  </Step>

  <Step title="Enter your credentials">
    Enter your Twilio **Account SID** and **Auth Token**.
  </Step>

  <Step title="Save">
    Save your credentials. AgentCallback uses them to manage phone numbers on your Twilio account.
  </Step>
</Steps>

## Or let AgentCallback manage it for you

<Note>
  If you don't want to connect your own Twilio account, AgentCallback can automatically provision a managed Twilio subaccount for your organization instead.
</Note>

## Get a phone number

<Tabs>
  <Tab title="Inbound">
    Inbound numbers receive calls and route them to an inbound agent.

    * **Buy a number** — search available numbers and purchase one directly.
    * **Import from Twilio** — bring in a number that already exists on your connected Twilio account.
    * **Verify a caller ID** — use a number you already own, without porting it, by completing a verification call and entering a confirmation code.

    Once added, assign the number an inbound agent so it knows how to handle incoming calls.
  </Tab>

  <Tab title="Outbound">
    Outbound numbers are used as the caller ID when your agents place calls, such as in a [campaign](/deploy/campaigns/overview).

    * **Buy a number** — search available numbers and purchase one directly.
    * **Import from Twilio** — bring in a number that already exists on your connected Twilio account.
  </Tab>
</Tabs>

## Next step

[Preview voices](/voices/preview-voices) to choose how your agent sounds.

<Note>
  Prefer to route calls through your own SIP trunk instead of Twilio? See [Add your SIP](/phone-numbers/add-your-sip).
</Note>