The BlackBerry smartphone experiences high battery drain with large contact lists in Microsoft Office Communicator 2007 (OCS)

Article ID: KB25412

Type: Support Content

Last Modified: 02-13-2012


Product(s) Affected:

  • BlackBerry Client for use with Microsoft Office Communications Server
Jump to: Environment | Overview
  • BlackBerry® Smartphones
  • Microsoft® Office Communicator 2007

The BlackBerry® smartphone user may experience high battery drain rates after installing Microsoft® Office Communicator with a large contact list. 

Microsoft Office Communicator while on the BlackBerry smartphone causes presence polling to occur.  Polling to a large contact list will cause excessive CPU utilization and an increased use of battery.  If a BlackBerry smartphone user experiences this remove old Microsoft Office Communicator contacts that may no longer be with the company, or decrease the number of Microsoft Office Communicator contacts.

Note:  During testing this behavior has been noticed when contact lists exceeded 100 Microsoft Office Communicator users.


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