-Run-time control APIs can be used to manage recording via internal business logic triggers, such as an application creating a group call and recording the conversation. Also, recordings can be triggered by a user action that tells the server application to start recording. Call Recording APIs are [Out-of-Call APIs](./call-automation-apis.md#out-of-call-apis), using the `serverCallId` to initiate recording. Once a call is created, a `serverCallId` is returned via the `Microsoft.Communication.CallLegStateChanged` event after a call has been established. The `serverCallId` can be found in the `data.serverCallId` field. See our [Call Recording Quickstart Sample](../../quickstarts/voice-video-calling/call-recording-sample.md) to learn about retrieving the `serverCallId` from the Calling Client SDK. A `recordingOperationId` is returned when recording is started, which is then used for follow-on operations like pause and resume.
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