Applies to: Exchange Server 2007
Topic Last Modified: 2007-06-12
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:
- Add a Unified Messaging server to the UM dial plan. For more
information about how to add a Unified Messaging server to a UM
dial plan, see How to Add a Unified
Messaging Server to a Dial Plan.
- Create a Unified Messaging IP gateway. For more information
about how to create a UM IP gateway for Unified Messaging, see
How to Create a
New Unified Messaging IP Gateway.
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: " / \ [ ] : ; | = , + * ? <
>.
- 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.
- 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: