Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2012-07-23

You can allow voice mail notifications to be sent to users for calls received by a Unified Messaging (UM) IP gateway. If you enable this setting, the UM IP gateway will be able to receive and send SIP NOTIFY messages for users. Message Waiting Indicator is enabled by default and allows message waiting notifications to be sent to users.

Message waiting indicator is a feature found in most legacy voice mail systems. In its most common form, it lights a lamp on the called party's phone to indicate the presence of a new voice message. Message waiting indicator can refer to any mechanism that indicates the existence of a new voice message or an unheard voice message.

The indication that a new voice message has arrived can be found in the Inbox in clients such as Outlook and Outlook Web App. It can take the form of a text (SMS) message sent to a registered mobile phone, an outgoing call made from an Exchange Unified Messaging server to number that's been configured for playing new messages, or it can be a lighted lamp on a user's desktop phone.

Looking for other management tasks related to UM IP gateways? Check out Managing UM IP Gateways.

Prerequisites

Use the EMC to allow or prevent Message Waiting Indicator from displaying

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM IP gateways" entry in the Unified Messaging Permissions topic.

  1. In the console tree, navigate to Organization Configuration > Unified Messaging.

  2. In the work pane, click the UM IP Gateways tab.

  3. Select the UM IP gateway that you want to modify and then, in the action pane, click Properties.

  4. On the UM IP gateway Properties page, select or clear the Allow Message Waiting Indicator button.

  5. Click OK to save your changes.

Use the Shell to allow or prevent Message Waiting Indicator from displaying

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM IP gateways" entry in the Unified Messaging Permissions topic.

This example prevents the message waiting indicator from displaying for users who are associated with the UM IP gateway named MyUMIPGateway with an IP address of 10.10.10.1.

Copy Code 
Set-UMIPGateway -Identity MyUMIPGateway -Address 10.10.10.1 -MessageWaitingIndicatorAllowed $false

For more information about syntax and parameters, see Set-UMIPGateway.

Other Tasks

After you've allowed or prevented the message waiting indicator from displaying on a UM IP gateway, you may also want to: