Microsoft Download Center Archive

Live Communications Server 2005 SP1 Interdomain Federation Profile

  • Published:
  • Version: 1.0
  • Category: Document
  • Language: English

This document explains the federation profile used by Live Communications Server 2005 SP1.

  • Microsoft® Office Live Communications Server supports a standards-based federation interface for instant messaging (IM) and presence functionality between Live Communications Server deployments, as well as between Live Communications Server and third-party public IM deployments such as AOL®, MSN®, and Yahoo!®.

    The federation model that is implemented in Live Communications Server is based on the IETF (Internet Engineering Task Force) draft document “Best Current Practices for Interdomain Instant Messaging using SIP/SIMPLE." There are several topics in this draft where multiple mechanisms are described to enable certain features. This document provides specific details on those areas, as well as Live Communications Server-specific implementation details that are relevant to the federated interface.

    This document provides third parties with all the information required to implement a federated interface with a Live Communications Server 2005 SP1 deployment in order to enable federated presence and IM scenarios.


Status: Live

This download is still available on The downloads below will come directly from the Microsoft Download Center.

FileSHA1 HashSize
LCS Public Federation Spec.doc1cebfe50db46be24449d04234dde6e237c9778b027 KB

File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

System Requirements

Operating Systems: Windows 2000 Service Pack 3, Windows Server 2003, Windows XP

    • This download works with the following Office application:
      • Microsoft Office Live Communication Server 2005 SP1

Installation Instructions

  • To install this download:
    1. Download the file by clicking the Download button (above) and saving the file to your hard disk.