Configure partitions to create a logical grouping of directory numbers (DNs) and route patterns with similar reachability characteristics. Partitions facilitate call routing by dividing the route plan into logical subsets that are based on organization, location, and call type.

Optional. Cisco Unified Communications Manager provides a default North American Numbering Plan (NANP). For countries with different dial plan requirements, you can install a Cisco International Dial Plan and use it to create a unique numbering plan that is specific to your requirements. When you use a national numbering plan, you can configure route patterns that use the @ symbol, along with route filters, to create patterns for local, national, long distance, and emergency calling.

Using a national numbering dial plan is optional. If you do not use a national numbering plan, you can configure one manually.

Configure a hunt pilot when you want to extend a call to one or more lists of numbers, where each list specifies a hunting order. When a call extends to a hunt party from these lists and the party fails to answer or is busy, hunting resumes with the next hunt party.

Configure translation patterns to manipulate inbound numbers from your voice gateway to the Cisco Unified Communications Manager. You can use translation patterns to change the calling and called number before the system forwards the call to the receiving endpoint. This translation is transparent and allows you to map extensions from the public to the private network.

Configure transformation patterns for phones when you want to modify the calling number display on an inbound call. Configure transformation patterns for gateways or trunks when you want to modify the outgoing calling or called number display sent out for outbound calls. You can also use transformation patterns to modify the outbound redirecting number (known as a diversion header in SIP devices).

You can configure different types of dial rules: application dial rules, directory lookup dial rules, and SIP dial rules.

• Configure application dial rules to add and sort the priority of dialing rules for applications such as Cisco Web Dialer and Cisco Unified Communications Manager Assistant.

• Configure directory lookup dial rules to transform caller identification numbers into numbers that can be looked up in the directory.

• Configure the SIP Dial Rules to create dial patterns for phones that are running SIP. This procedure is typically for legacy SIP phones.

Configure Intercluster Lookup Service (ILS) to create networks of remote Cisco Unified Communications Manager clusters. You can configure ILS on a pair of clusters and then join those clusters to form an ILS network.

If you have configured an Intercluster Lookup Service (ILS) network, you can configure global dial plan replication to create a global dial plan that spans across the ILS network and includes intercluster dialing of directory URIs and alternate numbers.