> For the complete documentation index, see [llms.txt](https://help.sipgate.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sipgate.com/documentation/en/behavior/stimme-and-sprache.md).

# Voice & language

In this area, you define how your AI phone assistant sounds and how it speaks to callers. The settings for voice, language, and greeting apply to all conversations of this AI Agent and can be adjusted at any time.

### Select AI Agent language

Choose the language in which your agent should conduct conversations. Available options are: German, English, Spanish, French, Polish, Dutch, Arabic, Turkish, Russian.

The language determines how your agent understands and responds to callers. The agent always replies in the set language, regardless of which language the caller speaks.

{% hint style="info" %}
**Note:** If your company regularly receives calls in different languages, it is recommended to set up a separate agent for each language.
{% endhint %}

<figure><img src="/files/bd924d46976fce183e295e626b3e4c1cef6f3798" alt=""><figcaption></figcaption></figure>

### Choose voice

Choose a voice that fits your company and your target audience. The voice influences how professional and understandable the agent is perceived to be.

#### Recommended voices

There are many voices to choose from. So that you do not have to test them all yourself, our Conversation Experience Team has evaluated the voices for clarity, pronunciation, and naturalness, including more complex content such as numbers, URLs, anglicisms, or spontaneous colloquial speech. These four voices stood out in particular:

| Voice    | Language | Character             |
| -------- | -------- | --------------------- |
| Philipp  | German   | Neutral & reliable    |
| Ramona   | German   | Calm & professional   |
| Benjamin | German   | Efficient & clear     |
| Laura    | German   | Direct & professional |

{% hint style="info" %}
**Note on proper names:** Company names, street names, and technical terms are pronounced differently depending on the voice. Test your agent with a test call before use. If a voice does not pronounce your company name correctly, switch the voice.
{% endhint %}

#### One language or multiple languages?

Choose the voice that sounds most natural for your use cases. Test the desired voice with typical conversation situations before use, especially if numbers, proper names, or technical terms occur frequently. Differences are easiest to spot in practical use.

{% hint style="success" icon="envelopes" %}
**Questions or feedback about voices?**

The Conversation Experience Team can help: [**stimmen-feedback@sipgate.de**](mailto:stimmen-feedback@sipgate.de)
{% endhint %}

### Set form of address <a href="#ansprache" id="ansprache"></a>

Define whether your agent addresses callers with **Formal** or **Informal** .

* **Formal** (Formal): suitable for customer service, B2B, and conservative industries
* **Informal** (Informal): suitable for modern companies and younger target groups

The chosen form of address determines only the use of **“Sie”** or **“Du”**. It does not affect the agent’s general speaking style. Polite and respectful behavior is stored by default regardless of the chosen form of address.

The form of address applies to all conversations of this agent and should match your company communication.

### Customize greeting text

You can set your AI Agent’s greeting text individually and adapt it to your company communication.

<figure><img src="/files/61045b90dd82b81402a81132893add5d6324aeec" alt=""><figcaption></figcaption></figure>

{% hint style="warning" %}
**Important:** The greeting text must include a note that this is a digital service. The text is reproduced verbatim, regardless of the set language.
{% endhint %}

### **Barge-in**

With barge-in, you define whether callers can interrupt the AI Agent while it is speaking. If the function is active, the agent stops immediately as soon as the caller speaks and listens. This creates more natural conversations and less waiting time.

**Where can I find the setting?**

In the logged-in area under Account Management → AI Agents → Select Agent → Agent Settings. Depending on the account configuration, the function may first need to be activated. If you have any questions, please contact sipgate customer support.

**Which options are available?**

Under interruption, you can choose between two settings:

* **Agent speaks to the end without interruption:** The agent cannot be interrupted while giving its answer and speaks its entire message to the end.
* **Caller can interrupt agent:**
  * As soon as the caller speaks, the agent stops and listens.
  * The greeting message is excluded from this and cannot be interrupted for privacy reasons.
  * If the agent is interrupted, the already generated answer remains visible in the transcript, even if it was not spoken in full.

{% hint style="info" %}
**Note:** Barge-in is not enabled by default. To allow callers to interrupt the agent, you must select and save the corresponding option in the agent settings.
{% endhint %}

### Enable background noise (optional)

Background noise, such as office sounds, can optionally be enabled. This setting shapes the atmosphere of the conversation and can convey the impression of a real workplace.

### Language of the conversation summary

Specify in which language conversation summaries are created.

**Example:** Your agent conducts conversations in English, but your team works in German. Set the summary language to German so that all employees can use the logs directly.<br>


---

# Agent Instructions
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