Nortel Networks NN43001-121 - Manual (Page 87)

Migration planning from LCS 2005 to OCS 2007 87
Phase Description User experience
2. Deploy OCS 2007 and begin
moving users to the new server
or pool. Deploy a new Office
Communications Server 2007
Enterprise pool or Standard
Edition server. If required,
deploy an Archiving and CDR
Server. Users are moved to
the new server or pool but will
continue to use OC 2005 . No changes. OC 2007 client
is not rolled out at this phase
so users continue to use OC
2005 and have the same IM
and presence functionality.
3. Upgrade CS 1000 and if
determined for your migration,
add an additional Signaling
Server as the SIP CTI FE. Upgrade Call Sever and
Signaling Server. The feature
is provided as a Product
Enhancement Package (PEP)
for Release 5.0 Call Server and
Signaling Server.
If you have a large client base,
add an additional Signaling
Server as the SIP CTI FE so
both LCS 2005 and OCS 2007
can have RCC. No changes. Users continue
to use OC 2005 and have
the same IM and presence
functionality.
4. Deploy OCS 2007 Mediation
Server. Deploy OCS 2007 Mediation
Servers. No changes. Users continue
to use OC 2005 and have
the same IM and presence
functionality
5. Deploy OCS Proxy server
with MCM 3.0 . Deploy OCS Proxy Server with
MCM 3.0 . No changes. Users continue
to use OC 2005 and have
the same IM and presence
functionality
6. Enable enhanced presence,
roll out OC 2007 client, and
continue migrating users Enable users for enhanced
presence, roll out the OC 2007
client, and the Live Meeting
2007 client to the users. • The migrated users can use
the full functionality of OC
2007 when communicating
with other migrated users.
• Once enabled for enhanced
presence, these users can
no longer sign in to a OC
2005 client or previous
Communicator Web Access
or Communicator Mobile
Access clients.
7. Configure PCA routing for
new OC 2007 client users on
the CS 1000. Configure PCA on the CS 1000.
Change NRS and SPS routing. Migrated users are able to
use Telephony Gateway and
Services functionality (VoIP)
and RCC.
Nortel Communication Server 1000
Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007
NN43001-121 01.03 Standard
Release 5.0 30 April 2008
Copyright © 2005–2008, Nortel Networks
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