## 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.

## Click To Call

[Added in 2026.6](https://docs.cognigy.com/release-notes/2026.6) _Click To Call_ lets you create a voice AI Agent that end users can talk to with a single click. You can deploy Click To Call through the following options:

- **Click To Call Widget** — you can easily embed a widget into your website. Additionally, you can use the Click To Call [Widget API and CSS styles](https://github.com/Cognigy/click-to-call-widget) to customize your AI Agent.
- **Click To Call SDK** — you can build a custom application using the Click To Call [SDK](https://github.com/Cognigy/click-to-call-sdk).

## Key Benefits

- **Optimized latency and high definition audio quality**. The underlying web real-time communication (WebRTC) protocol and Opus codec allow for low-latency and higher quality audio communication.
- **Multimodal communication**. Users can communicate primarily through voice with the AI Agent, but you can extend the capabilities of your voice AI Agents with [event handling and API methods](https://github.com/Cognigy/click-to-call-widget).
- **Centralized entry point**. Users can access your voice AI Agent directly through the widget while browsing through your website without the need to call a phone number.
- **Swift voice communication**. Users can start a conversation with your voice AI Agent with just one click.
- **Transfer calls**. The Click To Call widget supports [Dial call transfers](https://docs.cognigy.com/ai/agents/develop/node-reference/voice/voice-gateway/transfer). This way, you can transfer the call to a human agent or a contact center.
- **Fully customizable**. You can customize the Click To Call widget with the CSS styles in the [Click To Call widget GitHub repository](https://github.com/Cognigy/click-to-call-widget) to match your brand or build a custom application using the [Click To Call SDK](https://github.com/Cognigy/click-to-call-sdk).

## How to Start with Click To Call

Start by reading the following articles and seeing what Click To Call is capable of:

- [Quickstart: Set up Your First Click To Call Widget](https://docs.cognigy.com/click-to-call/quickstart)
- [Configure the Click To Call Widget](https://docs.cognigy.com/click-to-call/configure)
- [Embed the Click To Call Widget in Your Website](https://docs.cognigy.com/click-to-call/embed)

## More Information

- [Voice Gateway Endpoint](https://docs.cognigy.com/ai/agents/deploy/endpoint-reference/voice-gateway)
- [Voice Gateway Self-Service Portal](https://docs.cognigy.com/voice-gateway/webapp/overview)
- [Tutorials](https://docs.cognigy.com/click-to-call/tutorials/overview)