Nortel Networks NN43001-121 User Manual
Page 83
LCS 2005 and OCS 2007 coexistence
83
supported configuration because of incompatible underlying libraries. The
same CS 1000 can be connected to two or more different communication
servers (LCS 2005 or OCS 2007).
The following must be considered for coexistence of LCS 2005 and OCS
2007:
•
The CS 1000 must be upgraded to Release 5.0 with the required
Product Enhancement Packages (PEPs) .
•
OCS 2007 patches from Microsoft must be in service. For more
information, see the Attention box under
.
•
NRS is required to appropriately route a call to the Communication
Server.
•
Different server DNs (Hot Ps) are assigned for each Communications
Server (LCS or OCS). The PCA for each user is configured with the
corresponding server DN as a target DN
•
LCS 2005 and OCS 2007 can share the same Active Directory but
you can only have one OC client user account on either LCS 2005 or
OCS 2007.
•
For Remote Call Control (RCC) support , a single Signaling Server
cannot be used for both LCS 2005 and OCS 2007 as the configuration
of the SIP CTI FE is different for both. In this case, the following options
can be considered:
— RCC supported for both LCS 2005 and OCS 2007. Upgrade the
existing Communication Server 1000 to support OCS 2007 RCC
users. Configure an additional SIP CTI FE Signaling Server for
LCS 2005 RCC users. An additional AML ELANs is defined on the
Call Server. Change the static routing rule on the LCS 2005 Home
server to route RCC traffic directly to the SIP CTI FE for LCS 2005.
Geographic Redundancy is not supported for LCS 2005 RCC users
in this case.
— RCC supported for only LCS 2005 users. Enable RCC only for
LCS users in the Active Directory, on the OC clients, or both. The
SIP CTI FE should be configured according to the document Nortel
Converged Office Fundamentals (NN43001-525) for LCS 2005.
For example, the Phone context=dialstring configuration on the
Signaling Server is used.
— RCC supported only for OCS 2007 users. Enable RCC only for OCS
users in the Active Directory, on the OC clients, or both. The SIP CTI
FE should be configured according to this document. For example,
the Phone-context=<SIP URI Map Entries> configuration on the
Signaling Server is used.
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
.