Cisco Unity Connection's Digital Networking feature is designed to link separate Unity Connection clusters (locations) to form a single, unified system from the perspective of directory access and messaging. The primary function is to replicate directory objects between locations over an HTTPS or SMTP connection. This replication specifically includes user accounts and their associated directory information (name, extension, etc.), which allows users on one cluster to search for and send voice messages to users on a different cluster as if they were on the same system.

A. partitions and search spaces: These are core components of the call routing and restriction tables (dial plan) and are specific to the configuration of each local Unity Connection cluster. They are not replicated.
B. user greetings: User greetings are media files stored on the user's home cluster. While messages can be delivered across the network, the greeting files themselves are not replicated between clusters.
C. user templates and user greetings: User templates are configuration objects used for creating new users on a local cluster and are not replicated. User greetings are also not replicated, as explained above.
D. call handlers: Call handlers are system-level objects that manage call flow and auto-attendant functions. They are part of the local cluster's configuration and are not replicated via Digital Networking.

1. Cisco Unity Connection Networking Guide

Release 12.x

Chapter: "Digital Networking

" Section: "How Digital Networking Works."

This section states

"When you join two or more Unity Connection locations to a site... Unity Connection automatically replicates user and contact data from each location to all other locations in the site." This directly supports that user data is the object of replication.

2. Cisco Unity Connection Networking Guide

Release 12.x

Chapter: "Digital Networking

" Section: "Data Replicated Between Locations in a Digital Network."

This section explicitly clarifies what is and is not replicated: "Directory information for users and contacts from all locations in a Cisco Unity Connection site is replicated... System configuration data—for example

templates

classes of service

and schedules—is not replicated between locations." This confirms that objects like templates (Option C)

partitions

and search spaces (Option A) are not replicated.

3. Cisco Unity Connection System Administration Guide

Release 12.x

Chapter: "Networking

" Section: "Digital Networking."

The guide notes

"When you use Digital Networking to link two or more Unity Connection servers or clusters

the user data from all locations is replicated

creating a single directory of users." This reinforces that the core replicated object is the user directory. It makes no mention of replicating call handlers

partitions

or greetings.