# Agent Settings: Voice Call

![Voice call configuration sub-tab showing Call style set to Live conversation, Spoken language set to English, AI provider set to OpenAI, a call voice picker, and Reset and Save changes buttons](/images/docs/os/agent-settings/agent_settings_voice_call.webp)

## Overview

The Voice call sub-tab configures how live voice calls with an agent behave — the conversation style, the spoken language, the AI provider that powers the call, and the voice used on calls. Its helper text states: "Customize how voice calls work. Screen sharing always uses live conversation." Voice calls are real-time WebRTC sessions powered by LiveKit.

An info banner explains the two call styles: "Live conversation streams the call end-to-end and feels more natural. Step-by-step mode transcribes the user, has the agent think, then speaks — slower, with more time between turns. Screen sharing always uses live conversation."

To reach this screen, open the **Edit Agent** modal, select **Voice** in the Configurations sidebar, enable the voice toggle at the top, and switch to the **Voice call** sub-tab. Settings on this sub-tab are saved as a call configuration, separate from the chat voice chosen on the Voice sub-tab.

## Target Audience

**Administrator** | **Agent Builder**

## Settings Reference

#### Call style
A dropdown choosing between two modes:

- **Live conversation** — streams the call end-to-end for a natural, low-latency exchange.
- **Step-by-step** — transcribes the user's speech, lets the agent think, then speaks the reply; slower, with more time between turns.

Screen sharing sessions always use live conversation regardless of this setting.

#### Spoken language
A dropdown selecting the language the call is conducted in (English in the screenshot).

#### AI provider
A dropdown selecting which provider powers the call (OpenAI in the screenshot; OpenAI, Google, and Anthropic are the configurable provider options). Choosing a provider also determines which voices are available in the call voice picker below.

#### Voice
Labeled "The voice your agent uses on calls." Clicking **Select a voice** opens the same searchable voice picker used on the Voice sub-tab, scoped to the selected AI provider. The picker only appears once an AI provider has been chosen.

#### Additional step-by-step options
The call configuration also supports **Text-to-speech provider** and **Speech-to-text provider** selections (OpenAI, Google, or ElevenLabs); these are disabled when Call style is Live conversation, since live mode streams end-to-end. Toggles for **"Look things up only when needed"** (function calling during calls) and **"Allow screen sharing on a call"** are also part of the call configuration.

#### Reset and Save changes
**Reset** discards unsaved edits to the call configuration. The save button persists the configuration — it reads **Save changes** when updating an existing configuration (as in the screenshot) and **Save** when creating the first one.

## How to Use

#### Step 1: Open the Voice call sub-tab
In the **Edit Agent** modal, go to **Configurations → Voice**, make sure the voice toggle at the top is on, then click the **Voice call** sub-tab.

#### Step 2: Choose a call style
Pick **Live conversation** for natural, streamed calls, or **Step-by-step** if you prefer transcribe-think-speak turns. Remember that screen sharing always uses live conversation.

#### Step 3: Set the language and provider
Select the **Spoken language** for calls and the **AI provider** that should power them.

#### Step 4: Pick the call voice
Click **Select a voice** and choose the voice the agent uses on calls; you can search and preview samples in the picker.

#### Step 5: Save
Click **Save changes** to persist the call configuration, or **Reset** to discard your edits.