Stephanie Lindsey

US Patent:

20050089023, Apr 28, 2005

Filed:

Aug 20, 2004

Appl. No.:

10/923598

Inventors:

Warren Barkley - Mill Creek WA, US
Stephanie Lindsey - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04L012/66

US Classification:

370352000

Abstract:

An architecture for an extensible real-time collaboration system providing a unified interface is provided. The architecture presents a unified application program interface for writing application programs that use communications protocols. The architecture has presence and activity objects, multiple endpoint objects, and a collaboration service object. These objects may use various communications protocols, such as Session Initiation Protocol or Real-Time Transport Protocol, to send and receive messages. The presence and activities objects, multiple endpoint objects, and collaboration service object may each have one or more APIs that an application developer can use to access or provide various functionalities. These objects map the API to the underlying implementation provided by other objects.