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192 APPENDIX A: UPGRADING VCX SERVER SOFTWARE FROM V7.0 TO V7.1
System Administration Guide for more information and for
configuration options.
The components in a multi-site VCX system can be set up in many
possible configurations. The procedures in this section are based on a
multi-site VCX system that includes two regions (Region 1 and Region 2)
with multiple branch offices in each region.
All upgrade commands are executed locally at the console.
When upgrading a region-to-region office configuration, you must drop
replication between the Authentication and Directory server in each
region.
CAUTION: When upgrading a multi-site VCX system, upgrade the
regional servers before upgrading the branch servers. If you upgrade the
branch servers first, the database schema on the branches may not match
the schema version on the region causing database replication failure.
Multi-Site VCX
System Upgrade
Order
When upgrading a multi-site VCX system configuration, upgrade the
components in the following order:
■ If you plan to enable Global Voicemail Integration, install IP Messaging
software on a pair of Global Voicemail Central Servers, and then set
up the GVCS through the IP Messaging administrator configuration
interface before enabling global voicemail integration on regional and
branch office IP Messaging servers.
■ Upgrade the replicated Authentication and Directory servers in each
regional office.
■ Upgrade the IP Messaging servers in each regional office.
■ Upgrade the Call servers in each regional office.
■ Upgrade the Call Records server (optional).
■ Upgrade the branch offices hosted by a region.
Upgrading the
Regional
Authentication and
Directory Servers
This section describes how to upgrade the Authentication and Directory
servers in Region 1 and Region 2.
In this example of two-region replication, replication is dropped on the
Authentication and Directory server in each region. As the number of
regions increases, so does the complexity of replication. The upgrade
process for Authentication and Directory servers in a multi-region system