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

# Voice Setup & Personalization

> Configure the voice identity and phonetic accuracy for your voice agent.

Once you have selected your telephony provider, the final step in the **Phone Number** configuration is defining the acoustic identity of the line. This ensures that when your **Voice AI Agent** picks up, it sounds exactly like the persona you designed.

***

## Assigning a Voice Profile

The **Voice** setting allows you to link a specific **Speech Profile** to this phone number. This is where you decide if this line handles support queries with a "Calm & Professional" tone or sales calls with an "Energetic & Persuasive" one.

<Steps>
  <Step title="Select Voice">
    Click the **Voice** dropdown to view your available Speech Profiles. This list includes both the standard system voices and any **Custom Speech Profiles** you have added (e.g., ElevenLabs or Azure integrations).
  </Step>

  <Step title="Audition the Agent">
    Click the **Play icon** next to the selected voice to hear a real-time sample.

    * **Tip:** Always audition the voice to ensure it matches the region. A **Voice AI Agent for Indian Languages** should use a relevant profile to ensure the accent resonates with local callers.
  </Step>
</Steps>

***

## Pronunciation Configuration

Even the most advanced **Voice Agents** can struggle with unique brand names or regional dialect terms. The **Pronunciation Words** section allows you to attach specific phonetic rules—previously defined in your **Word Management** library—to this specific phone line.

### Managing Latency vs. Accuracy

<Warning>
  **Critical Performance Note:** Every custom pronunciation word you add forces the AI to check a lookup table before generating speech.

  * **Impact:** Adding too many words can introduce noticeable latency (lag) before the agent responds.
  * **Limit:** We recommend adding **only essential terms** that the AI consistently mispronounces. Do not add common words.
</Warning>

### Best Practices for Pronunciation

When configuring **Voice AI Agents for Arabic** or **Indian Languages**, prioritizing the right words is key to maintaining a smooth conversation flow.

| Scenario            | Do This (Add to List)                                                            | Avoid This (Do Not Add)                                                              |
| :------------------ | :------------------------------------------------------------------------------- | :----------------------------------------------------------------------------------- |
| **Brand Names**     | Add unique company names (e.g., *"Verloop"* -> *"Vur-loop"*).                    | Don't add standard English words unless the local pronunciation is vastly different. |
| **Regional Cities** | Add cities with complex spellings (e.g., *"Sharjah"* or *"Thiruvananthapuram"*). | Don't add major global cities (London, Dubai) that models already know.              |
| **Cultural Terms**  | Add specific honorifics or units (e.g., *"Lakhs"*, *"Dirhams"*).                 | Don't add slang that doesn't impact understanding.                                   |

### How to Add Words

1. Click into the **Pronunciation Words** field.
2. Select the specific terms from your global **Word Management** list that apply to this phone line's use case.
3. Test the line to ensure the **Voice Agent** uses the phonetic mapping correctly without causing awkward pauses.