*** id: 10b9fbeb-f0a7-42fd-8f20-6fb15b761c9b slug: /php/reference/calling/results/prompt-volume hide\_title: true max-toc-depth: 3 ---------------- [prompt]: /docs/server-sdk/v2/php/reference/calling/actions/prompt#volume # Relay.Calling.PromptVolumeResult This object is returned by [`volume`][prompt] method and represents the final result of a volume control operation. ## Properties | Property | Type | Description | | :----------- | :-------- | :------------------------------------------------ | | `successful` | `boolean` | Whether the volume has been changed successfully. |