These release notes
describe new features, requirements, restrictions, and caveats for
Unified Communications Manager
and IM and
Presence Service. These release notes are updated for every
maintenance release but not for patches or hot fixes.
Communications Manager, the call-processing component of the Cisco Unified
Communications System, extends enterprise telephony features and capabilities
to IP phones, media processing devices, VoIP gateways, mobile devices, and
Presence Service collects information about user availability, such
as whether users are using communications devices (for example, a phone) at a
particular time. IM and Presence Service can also collect information about
individual user communication capabilities, such as whether web collaboration
or video conferencing is enabled. Applications such as
Communications Manager use this information to improve productivity
among employees, that is, to help employees connect with colleagues more
efficiently and determine the most effective way to engage in collaborative
In the past, export
licenses, government regulations, and import restrictions have limited the
ability of Cisco to supply Unified Communications Manager and
Presence Service worldwide. Cisco has obtained an unrestricted U.S.
export classification to address this issue;
Presence Service supports an export unrestricted (XU) version only.
The unrestricted version differs from previous releases of
Presence Service in that it does not contain strong encryption
Be aware that
after you install an unrestricted release, you can never upgrade to a
restricted version. You are not allowed to perform a fresh installation of a
restricted version on a system that contains an unrestricted version.