[Home](./index.md) > [sip.js](./sip.js.md) > [UserAgentOptions](./sip.js.useragentoptions.md) > [autoStop](./sip.js.useragentoptions.autostop.md) ## UserAgentOptions.autoStop property If `true`, the user agent calls the `stop()` method on unload (if running in browser window). Signature: ```typescript autoStop?: boolean; ```