Exchange 2007 SP1 Features with Communications Server 2007
The following is a summary of the Unified Messaging features that are available in an integrated Exchange 2007 SP1 and Communications Server 2007 environment:
· Enable the user for Unified Messaging by using the Enable-UMMailbox cmdlet or the Exchange Management Console. Use the Set-Mailbox cmdlet to create a secondary EUM proxy address for the user. For more information about how to create a secondary EUM proxy address for a user, see How to Add, Remove, or Modify Extension Numbers for a UM-Enabled User.
· Add the calling party as a personal contact in Outlook and include the telephone extension number for the contact.
Communications Server 2007 has extended the Active Directory schema to store the numbers for each user in E.164 format. To match incoming fixed-length extensions, whose length is defined by the dial plan, an Exchange Unified Messaging administrator must set the InternationalNumberFormat attribute in the properties of the UM dial plan. The attribute value is prefixed to the incoming extension number. The resulting number is matched against the user's numbers in the Active Directory directory service that are stored in E.164 format.For example, a Unified Messaging administrator creates a UM dial plan named Redmond WA, USA. They set the InternationalNumberFormat attribute to “142570xxxxx”. In this example, the number of “x”s is determined by the length of the extension, which is a five digit extension in this example. If the Unified Messaging server answers an incoming call that has the extension 12345, it will combine this extension with the value of the InternationalNumberFormat attribute to obtain the telephone number “tel:+14257012345”. This resulting number is matched against numbers that are stored for all users in the Active Directory forest.
Note: This feature is available only when you use the Office Communicator 2007 client as the caller’s telephone.
· The subscriber’s audio codec is set to WMA.
· The subscriber's audio codec is not set and the subscriber’s associated UM dial plan audio codec is set to WMA.
Scenario 2 A Unified Messaging subscribers, who’s associated UM dial plan audio codec is set to WMA, logs on to Unified Messaging, locates someone in the directory, and leaves them a message.Play on Phone calls cannot be automatically forwarded when they are played on Office Communicator 2007 In Exchange 2007 RTM, the Unified Messaging Play on Phone feature enables users to see whether they have a voice message in Outlook or Outlook Web Access, forward the message to the telephone number they want, and then use that telephone to listen to the message. When Exchange 2007 SP1 is used together with Communications Server 2007, the Play on Phone number can be a Microsoft Office Communicator 2007 endpoint. If you have configured call forwarding to an alternate telephone number, the Play on Phone call will be sent to the Play on Phone number that is configured as an Office Communicator 2007 endpoint and the call will not be forwarded to the alternate telephone number. This feature provides additional voice mail protection because it ensures that a voice message is not forwarded to anyone other than its intended recipient.
Note: This functionality is available only when the user is using the Office Communicator 2007 client.
Exchange 2007 SP1 Features Without Communications Server 2007
The following features are available in Exchange 2007 SP1 without integrating your Unified Messaging environment with Communications Server 2007:
Inband fax tone detection Fax tone detection enables an IP gateway, an IP PBX, or Exchange Unified Messaging to determine the type of incoming call that is being received. Fax tone detection can work in the following three ways:
· The IP PBX or IP gateway detects the fax tone and sends a reinvite request by using T.38 Session Description Protocol (SDP).
· Fax tone detection can be performed by using both an IP PBX or IP gateway and Unified Messaging. In this method, when the IP gateway or IP PBX detects the fax tone, it does not send a re-invite but instead sends CNG tones (out of band) as named telephony events as defined in RFC 2833. As soon as the IP PBX or IP gateway has sent the CNG tones, the Unified Messaging server performs out-of-band fax tone detection and sends a reinvite by using T.38 SDP.
· If the IP PBX or IP gateway does not use either of these methods, Unified Messaging inband fax tone detection should be turned on. This will enable the Unified Messaging server to detect incoming inband fax tones. By default, this feature is turned off. However, it can be enabled in environments that use IP PBXs or IP gateways that cannot detect fax tones. You enable inband fax tone detection by changing the EnableInbandFaxDetection setting to True in the globcfg.xml file. The globcfg.xml file is located in the \Program Files\Microsoft\Exchange\bin folder on a computer that is running the Unified Messaging server role.
Cisco CallManager 5.x is supported and directly interoperates with Exchange 2007 SP1. However, fax receiving does not work correctly if you are using CallManager 5.x or 6.x even if you have enabled inband fax tone detection. If you do not enable this setting, Unified Messaging servers will rely on IP gateways or IP PBXs to perform fax tone detection.
For more information please visit Microsoft Technet
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