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

# Phone call config

> Connect a Twilio phone number so Candidates can take AI interviews over the phone.

Connect a Twilio phone number to let Candidates complete AI interviews by phone. Once it's set up, you can choose **Phone only** or **Allow both** as the **Interview channel** in an Interviewer's [Interview settings](/interview-automation/create-an-ai-interviewer/interview-settings#interview-channel).

<Note>Phone interviews are available on the Growth and Scale plans.</Note>

## What you need from Twilio

You need a [Twilio](https://www.twilio.com) account with a phone number that can make calls. From your Twilio Console, copy:

* Your **Account SID**
* Your **Auth Token**
* Your Twilio **phone number**

## Connect your number

<Steps>
  <Step title="Open Phone Call Config">
    Click **Configuration**, then select **Phone Call Config**.
  </Step>

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

  <Step title="Enter your number and cost limit">
    Under **Calling number and cost limit**, enter:

    * **Twilio Phone Number**: The number Candidates see when you call them. Use international format with a plus sign and country code, for example `+14155550123`.
    * **Max Cost Per Minute**: The most you're willing to pay per minute of calling, for example `0.25`. It must be greater than 0.
  </Step>

  <Step title="Save">
    Click **Save**. The status changes to **Configured** once all four details are saved.
  </Step>
</Steps>

## Update your settings later

* **Change your number or cost limit**: Update **Twilio Phone Number** or **Max Cost Per Minute** and click **Save**. You don't need to re-enter your credentials.
* **Rotate credentials**: Update **Twilio Account SID** and **Twilio Auth Token** only when they change in Twilio.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.