## StreamControl

Commands that can be executed on an ongoing stream.

#### Payload Schema

- **command** (string)


| Enum value | Description |
|  --- | --- |
| clear | Clears the audio buffer on the Sinch platform. Use this command to discard any buffered audio data that has not yet been played out to the caller. |
| heartbeat | Indicates that the connection is still active. Use this command during periods of silence to prevent timeout and maintain the stream connection. The no-audio timeout is 1 minute. |