## 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.

## Description

- As of Cognigy.AI 4.96.0, AudioCodes Nodes and Generic Voice Nodes are deprecated. Flows with these Nodes continue to work, and you can still edit and clone them as well as export them as a Package. However, you can’t create new ones in Cognigy.AI 4.96 or later.
- The full removal of AudioCodes Nodes is planned for Q2 2026. After the removal, AI Agents using these Nodes will stop working properly. We strongly recommend migrating to [Voice Gateway Nodes](https://docs.cognigy.com/ai/agents/develop/node-reference/voice/voice-gateway/overview) before the removal date.

The Send Metadata Node sends metadata via SIP INFO messages to the connected SIP trunk.

| Parameter | Type | Description |
| --- | --- | --- |
| Metadata | JSON | The metadata to send via SIP INFO. |

Example:

```
{
  "myParamName": "myParamValue"
}
```

This Node supports Activity Parameters. You can find more information about activity parameters on the [Parameter Details](https://docs.cognigy.com/ai/agents/develop/node-reference/voice/voice-gateway/parameter-details) page.

Last modified on June 15, 2026