# Generate Audio Prompts using AI Text-to-Speech

With AI Text-to-Speech (TTS), you type the wording you want and the system produces a natural-sounding audio prompt for you. There is no need to record anything or upload a file. This page shows where TTS prompts can be used and walks through creating one.

## Before you begin

[Enable AI Text-to-Speech](/pbx/ai-guide/enable-ai-text-to-speech/) for your account. The **Text-to-Speech** option only appears in the settings below once the feature is switched on.

## Where you can create TTS prompts

Wherever a feature accepts a voice prompt or greeting, you can generate it with Text-to-Speech. The following areas support it:

| Feature | Where to find it |
| --- | --- |
| Extension, call forwarding greeting | **Extension and Trunk > Extension > Presence > Call Forwarding** |
| Extension, voicemail greeting | **Extension and Trunk > Extension > Voicemail > Voicemail Greeting > Greeting Management** |
| Extension, ringback tone (played to the caller before the user answers) | **Extension and Trunk > Extension > Features > Prompt > Ringback Tone** |
| Inbound route, default and time-based destination prompts | **Call Control > Inbound Route > Default Destination** |
| Holiday prompt | **Call Control > Business Hours and Holidays > Holidays > Type > Prompt** |
| Call Flow Designer, prompts for flow components | **Call Flow Designer** |
| Group voicemail greeting | **Call Features > Voicemail > Group Voicemail > General > Group Voicemail Greeting > Greeting Management** |
| Global voicemail greeting | **Call Features > Voicemail > Voicemail Settings > Greeting Options > Global Voicemail Greeting** |
| IVR (Interactive Voice Response, the "press 1 for sales" menu) prompt | **Call Features > IVR > Basic > Prompt** |
| IVR key-press destination prompts (key destination, response timeout, invalid input) | **Call Features > IVR > Key Press Event > ... > Destination** |
| Ring group, join announcement | **Call Features > Ring Group > Join Announcement** |
| Ring group, ringback tone | **Call Features > Ring Group > Ringback Tone** |
| Ring group, routing destination prompts (failover, no extension online) | **Call Features > Ring Group > Failover Destination / No Extension Online Destination** |
| Queue, routing destination prompts (failover, time-based, no agent available) | **Call Features > Queue > Basic > Basic** |
| Queue, join announcement, ringback tone, periodic announcement | **Call Features > Queue > Basic > Prompt** |
| Queue, satisfaction survey prompt | **Call Features > Queue > Preferences > Satisfaction Survey** |
| Queue, key-press event destination prompt | **Call Features > Queue > Preferences > Key Press Event > Key Destination** |
| Custom prompt | **PBX Settings > Voice Prompt > Custom Prompt > Create New Prompt** |
| Hotel wake-up call prompt | **Hotel Management > Wake-up Service > Wake-Up Rule** |

:::note
Greetings you set on an extension's call forwarding and voicemail settings sync to that user's Cloud Voice App. The user can also edit the Text-to-Speech prompt directly in the Cloud Voice App, and their changes flow back to the matching extension settings on the phone system.
:::

## Generate a prompt

1. Open the settings for the feature you want a prompt for (see the table above), then select **Text-to-Speech**.
2. In the dialog that opens, fill in the prompt details.

   ![Prompt details dialog with fields for name, language, voice, and the text to convert](/images/pbx/ai-tts-prompt-details.png)

   - **Name**: A label to help you recognize the prompt later.
   - **Language**: The language the prompt should be spoken in.
   - **Voice**: The voice profile used to read the text.
   - **Text**: The wording to convert to audio. Enter it in the same language you selected above.
3. (Optional) Fine-tune the audio and listen to it before saving.

   a. Drag the **Speed**, **Volume**, and **Pitch** sliders to get the delivery you want.

   ![Speed, volume, and pitch sliders for shaping how the prompt is read](/images/pbx/adjust-ai-tts-prompt.png)

   :::note
   **Pitch** can only be adjusted when **Language** is set to Arabic, English (Wales), Icelandic, Romanian, Russian, or Welsh.
   :::

   b. Select **Listen** to generate a preview. The button reads **Generating** while the audio is created, then switches to **Play** once it is ready.

   ![The Listen control changing to Play after the preview audio finishes generating](/images/pbx/ai-greeting-listen.png)

   c. Select **Play**, then select the play control in the pop-up to hear the prompt in your browser.

   ![Playing back the generated prompt from within the browser](/images/pbx/play-tts-prompt.png)
4. Select **Save**.

## What happens next

- The prompt is saved and becomes available to apply to the feature you created it for.
- You can revise a prompt at any time by editing its text or changing the audio settings. Find saved prompts here:
  - Extension greetings: **Extension and Trunk > Extension > Voicemail > Voicemail Greeting > Greeting Management**
  - Group voicemail greetings: **Call Features > Voicemail > Group Voicemail > Group Voicemail Greeting > Greeting Management**
  - Every other feature that supports TTS: **PBX Settings > Voice Prompt > Custom Prompt**

  ![The custom prompt list where saved Text-to-Speech prompts can be reviewed and edited](/images/pbx/custom-tts-prompt.png)

:::note
Prompts you add under **Voicemail Settings** are also kept in sync with, and managed from, the custom prompt list.
:::