{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/microsoft.graph.incomingContext", "title": "incomingContext", "required": [ "@odata.type" ], "type": "object", "properties": { "observedParticipantId": { "type": "string", "description": "The ID of the participant that is under observation. Read-only.", "nullable": true }, "onBehalfOf": { "anyOf": [ { "$ref": "#/components/schemas/microsoft.graph.identitySet" }, { "type": "object", "nullable": true } ], "description": "The identity that the call is happening on behalf of." }, "sourceParticipantId": { "type": "string", "description": "The ID of the participant that triggered the incoming call. Read-only.", "nullable": true }, "transferor": { "anyOf": [ { "$ref": "#/components/schemas/microsoft.graph.identitySet" }, { "type": "object", "nullable": true } ], "description": "The identity that transferred the call." }, "@odata.type": { "type": "string" } } }