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

# Phone Call Testing

> Test your agent with real phone calls to validate voice quality, latency, and telephony features.

Phone call testing lets you interact with your agent over an actual phone call — the most realistic way to validate voice quality, latency, interruption handling, and telephony features before going live.

## How to Test via Phone Call

<Steps>
  <Step title="Get a phone number">
    Purchase a UponAI phone number from the **Phone Numbers** tab in your dashboard. See the [quickstart guide](/getting-started/quick-start) for setup steps.
  </Step>

  <Step title="Assign your agent">
    In the phone number's configuration settings, assign the agent you want to test.
  </Step>

  <Step title="Make the call">
    **Inbound test:** dial your purchased number from any phone.

    **Outbound test:** from the dashboard, click **Make an outbound call** and enter a destination number with country code (e.g., `+12137774445`).
  </Step>

  <Step title="Evaluate">
    Check voice quality, latency, interruption behavior, DTMF handling, and any telephony-specific features.
  </Step>
</Steps>

<Note>
  Phone call testing incurs standard call charges. Use [LLM Playground](/Test/llm-playground) or [Simulation Testing](/Test/llm-simulation-testing) for free text-based testing during development.
</Note>