--- title: "Trigger-based Blackouts" slug: "trigger-based-blackouts" updated: 2024-08-22T15:58:44Z published: 2024-08-22T15:58:44Z canonical: "help.tritondigital.com/trigger-based-blackouts" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.tritondigital.com/llms.txt > Use this file to discover all available pages before exploring further. # Trigger-based Blackouts You can use cue points to trigger a blackout during which your stream will play a **silent audio file**. End the blackout by sending another cue point. This is useful when you need to silence your stream for a specific period of time, such as during a sporting event blackout. Ideally, you should send this cue point at regular intervals, to protect against the unlikely event of a complete stream restart. If the silent audio file is unavailable for some reason, the listener is disconnected. (This is a fallback measure only, and is largely moot since listeners will likely disconnect themselves when they connect to a silent stream.) | Attribute | Description | Type | Required | | --- | --- | --- | --- | | **blackout_state** | Blackout period state. Valid values: - **start** - **end** | String | **Yes** | Set the `blackout_state` attribute to `start` when the blackout period begins. Set the `blackout_state` attribute to `end` when the blackout period ends. > [!NOTE] > **Ad injection** for your mounts must be enabled in order to trigger a blackout via cue points. If it is not currently enabled and you would like to use ad injection, please [contact Customer Support](/user/docs/contact-support). Note that ad injection is a paid service.