Key Features of UCMA 3.0 Core

• Integrated support for Instant Messaging (IM).

• Integrated support for audio, with Secure Real-time Transport Protocol (SRTP), early media, and multiple codec selection.

• Common telephony features enabled by means of a reusable signaling framework (transfers, forwards, caller on hold, gateway interoperability and other operations).

• Integrated audio devices: recorder, player, tone controller for Dual-Tone Multiple-Frequency (DTMF) and Fax tones, and connectors for speech recognition and speech synthesis.

• Loose coupling between signaling and media, allowing back-to-back and scenarios such as media-enabled Web clients.

• User impersonation.

• Conferencing features (control and monitoring): anonymous user join, trusted user join.

• Multimodal escalation-to-conference helpers for instant messaging calls.

  Developers who implement a custom audio provider can provide support for escalation-to-conferencing for the custom media type.

• Platform extensibility by means of the factory-based Call and MediaProvider classes.

  Developers can extend the Microsoft Unified Communications Managed API (UCMA) 3.0 Core SDK platform to handle a new media type by creating custom Call, MediaProvider, and MediaFlow subclasses that work with the new media type.

• Conference retrieval from PSTN conference ID.

• Publishing framework based on presence manifest. The manifest is predefined in UCMA 3.0 Core SDK and follows the same rules for presence publication as Communicator 2007.

• Automatic user endpoint bootstrapping based on container manifest.

The following features apply only to UserEndpoint type, not the ApplicationEndpoint type.

• Contact object registration

• Contact list creation and management

• Contact organizations in provided or custom groups