> ## 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.

# Step 1: Configure Global Settings

> Configure voice, language, model, and call-wide settings for your conversation flow agent.

Click on the empty canvas and click **Settings** to access global settings. This is where you configure agent-level settings.

<Steps>
  <Step title="Configure Voice Settings">
    Open the voice selection dropdown menu. Listen to the available voice samples and select the voice you want to use for the agent.

    **Custom Voices**: You can also add voices from the ElevenLabs community or clone voices by clicking "Add custom voice."

    Additional voice settings:

    * **Voice temperature**: Make the voice more variant or stable
    * **Voice speed**: Make the agent speak faster or slower
    * **Voice volume**: Make the agent speak louder or quieter
    * **Voice model** (if applicable): When using certain voice providers, you can choose between different models. Check the dashboard for detailed nuances of each model.
  </Step>

  <Step title="Select Language of Agent">
    Pick the language(s) the agent will understand and speak. This affects speech recognition, voice pronunciation, and the language the agent responds in — you do not need to add a "respond in X" instruction to your prompt.

    To support multiple languages, switch the selector to **Multiselect** and pick the specific languages you want. For best accuracy, prefer a single language when possible.
  </Step>

  <Step title="Select a Language Model">
    Select the model you want to use for the agent. You can override this within individual nodes. Optionally tune the LLM temperature to make answers more variant or more stable.

    We recommend starting with **GPT-4.1**, which offers an optimal balance of:

    * Response quality
    * Latency
    * Cost-effectiveness
  </Step>

  <Step title="Write Global Prompt">
    Specify the agent's persona, identity, guardrails, etc. This text is available in every node and influences all response generation.
  </Step>

  <Step title="Configure Knowledge Base">
    Supply context to the agent via documents, URLs, and texts. Read more in the Knowledge Base guide.
  </Step>

  <Step title="Configure Speech Settings">
    Options for fine-tuning how your agent interacts with users:

    * **Background sound**: Select a background sound that plays throughout the call (e.g. call center ambience) to make the conversation more human-like
    * **Responsiveness**: How responsive the agent is. Set lower for slower responses — reducing by 0.1 adds 0.5 seconds of agent wait time
    * **Interruption Sensitivity**: How quickly the agent gets interrupted. Set lower for more resilience to background speech
    * **Backchanneling**: How often and what words the agent uses to acknowledge users
    * **Boosted Keywords**: Biases speech recognition toward certain words like brand names or people's names
    * **Speech Normalization**: Converts dates, currency, numbers into plain words to prevent mispronunciation
    * **Reminder frequency**: How often the agent reminds the user when they are inactive
    * **Pronunciation**: Set up a pronunciation guide for specific words
  </Step>

  <Step title="Configure Call Settings">
    * **Voicemail**: Set up voicemail detection and what to do when voicemail is detected
    * **End call on silence**: End the call if the user is inactive for a configured duration
    * **Call duration**: Set a maximum call duration
    * **Pause before speaking**: At the start of the call, if the agent speaks first, it waits for the configured duration before speaking — useful when the user is still picking up
  </Step>

  <Step title="Configure Post Call Analysis">
    Set up later. Read more in the Post Call Analysis guide.
  </Step>

  <Step title="Configure Privacy & Webhook">
    Set up whether to opt out of sensitive data storage, and configure webhook settings for receiving call-related events.
  </Step>
</Steps>

## Configure Who Speaks First

Click on the **Begin** icon to select who speaks first in the call.