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KB18568 - TCP/TLS integration of LCS 2005 is no longer supported with BES 5.0
 
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Old 06-17-2009, 12:06 PM
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Default KB18568 - TCP/TLS integration of LCS 2005 is no longer supported with BES 5.0

KB18568 - TCP/TLS integration of Live Communications Server 2005 is no longer supported with v.5.0 BlackBerry Enterprise Server


Environment

  • BlackBerry® Enterprise Server version 5.0
  • Microsoft® Office Live Communications Server 2005



Overview

Research In Motion has discontinued support for BlackBerry® Client for use with Microsoft® Office Live Communications Server 2005 for Windows® Messenger users. Research In Motion does not plan to release new versions of the BlackBerry Instant Messaging Connector or collaboration client for Windows Messenger.


Cause

The BlackBerry Instant Messaging Connector previously supplied in BlackBerry Enterprise Server version 4.1.x made use of an application programming interface (API) not fully suitable for accommodating the demand and efficiency expected of a Server-class connector. This initial connector was referred to as Windows Messenger integration which used either a Transmission Control Protocol (TCP) or Transport Layer Security (TLS) port for connectivity to the Microsoft Live Communication Server back-end.
It is important to note that there was also connection limitations involved depending on the port/protocol selected. Specifically, TLS utilized a single persistent socket connection per user, which is continually open until that user logs out of that session. A TCP connection requires three separate persistent socket connections to maintain the same session.
New client versions of Enterprise Instant Messaging leverage the benefits of the BlackBerry Collaboration Service and Microsoft Office Live Communications Server integration. The Windows Messenger integration simply remained for backwards compatibility to allow time for BlackBerry Enterprise Server administrators to slowly migrate to this new connector. BlackBerry Enterprise Server version 5.0 marks the endpoint of the Windows Messenger integration.



Resolution

Prior to upgrading BlackBerry Enterprise Server version 4.1.x integrated with Microsoft Live Communication Server 2005 using Windows Messenger integration to BlackBerry Enterprise Server version 5.0 ensure the Microsoft Communicator Web Access Component is configured for use. Also ensure the BlackBerry Client for use with Microsoft Office Live Communications Server 2005 is installed on the BlackBerry smartphones.
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