New UM Dial Plan Wizard > New Page (RTM)

Microsoft Exchange Server 2007 will reach end of support on April 11, 2017. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.


Applies to: Exchange Server 2007

A UM dial plan is created by using an organization-wide scope and contains configuration information that is related to your telephony network. Use the New Dial Plan Wizard to create a new UM dial plan for use by Exchange Server 2007 Unified Messaging (UM). A UM dial plan logically represents sets or groupings of Private Branch eXchanges (PBXs) that share common user extension numbers. In practical terms, user extensions that are hosted on a PBX share a common extension number and have the ability to dial one another’s telephone extensions without appending a special number to the extension or dialing a full telephone number for the other users.

After the UM dial plan is created, you must perform the following tasks:

New Dial Plan Wizard - New Page

To create a new UM dial plan, in the New UM Dial Plan Wizard, on the New page, complete the following information:

  • Dial plan name

    • A UM dial plan name is required and must be unique, but it is used only for display purposes in the Exchange Management Console and the Exchange Management Shell. If you have to change the display name of the dial plan after it has been created, you must first delete the existing UM dial plan and then create another dial plan that has the appropriate name. If your organization uses multiple UM dial plans, we recommend that you use meaningful names for your UM dial plans. The maximum length of a UM dial plan is 64 characters, and it can include spaces. However, it cannot include any of the following characters: " / \ [ ] : ; | = , + * ? < >.
  • Number of digits in extension

    • The number of digits for extension numbers is based on the telephony dial plan that is created on a PBX. For example, if a user associated with a telephony dial plan dials a 4-digit extension to call another user in the same telephony dial plan; you select 4 as the number of digits in the extension. This is a required field that has a value range from 1 to 20. The typical extension length is from 3 to 7. If your existing telephony environment includes extension numbers, you must specify a number of digits that matches the number of digits in those extensions.

After you complete the fields on this page of the New UM Dial Plan Wizard, click New to create the new UM dial plan.

For More Information

For more information about UM dial plans, see the following topics: