/mcpbased on the parameters of the call, the configuration of the routing rule determines the initial search scope of the call. To facilitate setting the correct search scope on a call routing rule, you can set up routing rule conditions to select a rule based on the port of the incoming call, the phone system, the dialed number, or other criteria. If you are setting up multiple partitions and multiple search spaces, you must carefully consider the impact of the search scope that is configured for each call routing rule. Consider the following considerations related to setting the search scope with call routing rules: • Unity Connection uses the search space defined as the initial scope of the call to identify whether the call is from a user and if so, which user. If a user calls from an extension that is in a partition that is not a member of the search space set as the initial search scope for the call, the call is not identified as coming from the user. If the extension of the user overlaps with an extension in another partition that also appears in this search space, the call is identified as coming from the first object that Unity Connection finds when searching the partitions in the order that they appear in the search space. • Users who call to sign in to Unity Connection do not have the search scope set to the search space defined for the user profile until they have successfully completed the sign-in process. • System Distribution Lists: You can use search spaces to limit user access to send messages to distribution lists because you assign a partition to each distribution list. If you assign a distribution list in a partition that is not part of the search scope of a particular group of users, the users are not able to find the distribution list to address messages to it. For example, you can create a new partition called “Distribution Lists Partition” and configure the allvoicemailusers, allvoicemailenabledcontacts, and undeliverablemessages to use this partition. To grant certain users access to send to the lists, you can create a new search space that includes both the default partition and the “Distribution Lists Partition,” and assign this search space as the search scope for the users. • System Call Handlers: Unity Connection uses the call handler search scope to match extensions that are dialed from the call handler to users, administrator defined contacts, and remote contacts at VPIM locations. You can set the scope of the handler to either inherit the search scope that is already set on the call (from a previous handler or from a call routing rule) or to use the particular search scope that you specify. • Directory Handlers: Unity Connection uses the directory handler search scope to define the objects that callers who reach the directory handler can find or hear. For phone directory handlers, you can set the scope to the entire server, a particular class of service, a system distribution list, or a search space (either inherited from the call or specified for the directory handler). For voice enabled directory handlers, you can set the scope to the entire server or to a search space (either inherited from the call or specified for the directory handler). When callers search a directory handler for a particular name, if the scope of the directory handler is set to a search space, Unity Connection searches each partition in the search space and returns a list of all of the objects that match the name. • Interview Handlers: Each interview handler is associated with a partition, so that it can be included in a search space and callers can reach it from other parts of the conversation. Because interview handlers do not involve dialing or addressing to users or other objects, they do not have a search scope defined. • Networking: When you network a Unity Connection server with other Unity Connection locations, the partitions and search spaces that are configured on the server replicate to all other Unity Connection locations on the network. A Unity Connection network supports up to 10K partitions and 10K search spaces shared among all of the locations in the network. System Administration Guide 99 Call Management How Search Spaces Work