---
title: "Telnyx Voice API update: Easily add supervisors to active calls"
canonical: https://telnyx.com/release-notes/voice-api-supervising-leg-feature
---
# Telnyx Voice API update: Easily add supervisors to active calls

[Release notes](https://telnyx.com/release-notes)

# Telnyx introduces Supervising Leg feature for Voice API

### 18, Mar 2025

We're excited to announce the launch of the Supervising Leg feature within our Voice API, making it easier and more reliable to add supervisors into ongoing calls.

## What’s new?

Previously, adding a supervisor to a call required converting the call into a conference. With this new feature, you can now initiate a call via the Voice API and seamlessly add this newly created call as a third leg directly into an existing call. This streamlined method simplifies call supervision significantly.

## Benefits:

* **Simplified Call Supervision:** Adding a supervisor no longer requires converting calls into conferences, reducing complexity and improving reliability.
* **Increased Efficiency:** Directly adding supervisors to active calls saves valuable time and reduces potential errors, ensuring smoother call management.
* **Enhanced Reliability:** Minimize call interruptions and ensure supervisory presence without compromising call quality or stability.

This enhancement is ideal for contact centers, customer support teams, and sales operations, providing greater control and smoother oversight of critical conversations.

### How to get started:

See our updated [Voice API documentation](https://developers.telnyx.com/api/call-control/dial-call#request) for details on using the supervisor features.

[Start building](https://telnyx.com/sign-up)

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