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Objects and Interfaces

The Communications Service relies on the RTC API, which offers a set of COM interfaces and methods that can be used in custom applications.

The following list describes the general characteristics of the RTC API.

  • Uses SIP-based signaling and presence communications.
  • Integrates with the Microsoft .NET SIP proxy and registrar server.
  • Supports provisioning with ITSPs or third-party corporate-deployed servers.
  • Integrates signals over TCP/IP and PSTN networks.

The following table shows the primary RTC communication objects and their interface definitions.

Object Interface Description
Client IRTCClient Sets the session types and parameters.
Session IRTCSession Supports all session types and represents the entity that creates or receives audio calls or IM sessions.
Participant IRTCParticipant Retrieves a participant's name, URI, and state.
Buddy IRTCBuddy Handles buddy information for the presence feature.
Watcher IRTCWatcher Handles watcher information for the presence feature.
Profile IRTCProfile Retrieves profile information.

The following illustration shows how these objects are created.

 Last updated on Saturday, April 10, 2004

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