| Platform SDK: TAPI | 
The CallHub object exposes methods that retrieve information concerning participants in a multi-party call.
The ITCallHubEvent and IEnumCallHub interfaces are not directly exposed on the CallHub Object, but are tightly related to it and are listed here for reference convenience.
| Interface | Description | 
|---|---|
| ITCallHub | Provides methods to retrieve information concerning a CallHub object. | 
| ITCallHubEvent | Used to acquire information concerning CallHub events. | 
| IEnumCallHub | Enumerates ITCallHub |