# Class TCallConversation OptimaJet.Workflow.BpmnPlugin.Model.TCallConversation Namespace: [OptimaJet.Workflow.BpmnPlugin.Model](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/) ```csharp public class TCallConversation : TConversationNode ``` ## Type Hierarchy - [TBaseElement](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TBaseElement/) - [TConversationNode](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TConversationNode/) - TCallConversation Current type ## Constructors `public TCallConversation()` Initializes a new instance of the [TCallConversation](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TCallConversation/) class. ## Properties `public Collection ParticipantAssociation { get; }` `public bool ParticipantAssociationSpecified { get; }` Gets a value indicating whether the ParticipantAssociation collection is empty. `public XmlQualifiedName CalledCollaborationRef { get; set; }` [Previous TCallChoreography](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TCallChoreography/) [Next TCancelEventDefinition](https://api.workflowengine.io/bpmn-plugin/OptimaJet.Workflow.BpmnPlugin.Model/TCancelEventDefinition/)