## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.cognigy.com/llms.txt)

Use this file to discover all available pages before exploring further.

_Cognigy Click To Call_ is a multimodal voice application that allows for seamless communication between users and your voice AI Agent with a single click.

The main function is to create easy to use voice AI Agent widgets that you can embed in your website. Additionally, you can build a custom experience with the Click To Call SDK.

Click To Call is built with the web real-time communication (WebRTC) protocol and Opus codec, and delivers low-latency, high-quality audio communication.

### Overview
Learn about Click To Call, deployment options, key benefits, prerequisites, and restrictions.

### Quickstart
Set up a basic Click To Call widget in a few steps.

### Configure
Configure the Click To Call widget in the Voice Gateway Endpoint settings.

### Embed
Embed the Click To Call widget in your website.

### Tutorials
These tutorials help you with advanced setups for the Click To Call widget.

### SDK
Build a custom voice interface from scratch with the Click To Call SDK.