?› Remove LCS 2005 Standard Edition servers fi rst.
Upgrading to Office Communications Server 2007 ??? Chapter 11 361
?› For environments with LCS 2005 Enterprise Edition, remove all but one enterprise
server from the network fi rst, and then remove the enterprise pool to remove the
last enterprise server from the network.
What to Do Once You??™ve
Completed Your Migration to OCS 2007
?› Migrate users off of MOC 2005 and on to the new MOC 2007 client software.
?› Enable enhanced presence in OCS 2007, which now provides users with not
only online or offline status information but also integration with Outlook
calendaring data.
?› Add new OCS 2007 capabilities, such as Web conferencing, VoIP telephony, and
multipoint video conferencing, which are enhancements to OCS 2007.
362 Chapter 11 ??? Upgrading to Offi ce Communications Server 2007
Frequently Asked Questions
Q: Can you perform an in-place upgrade from LCS 2005 to OCS 2007?
A: No, you can only perform a side-by-side upgrade to OCS 2007.
Q: Should you upgrade client software to MOC 2007 before migrating to OCS 2007?
A: No. MOC 2007 will not work against an account on LCS 2005, so you must migrate
the organization from LCS 2005 to OCS 2007 before you migrate clients from
MOC 2005 to MOC 2007.
Q: Can I have LCS 2005 and OCS 2007 coexist in the environment?
A: Yes, you can have LCS 2005 and OCS 2007 operate in the same environment for a long
time. However, usually the coexistence occurs for only the time of the migration.
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