Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007
Topic Last Modified: 2008-03-20

Integrating Microsoft Exchange Server 2007 Unified Messaging (UM) with your company's telephony network is one of the most significant deployment challenges when you are deploying Unified Messaging. Interoperating with Exchange 2007 Unified Messaging will depend on your specific Private Branch eXchange (PBX) or IP PBX configurations and may also require that you install IP gateways, purchase additional PBX hardware, or configure and enable features on your PBXs or IP PBXs. In some cases, the PBX may cause reduced functionality or limitations in the Unified Messaging features. This is especially true for IP PBXs. This topic discusses the manufacturers and specific models of IP gateways that you can configure to support Microsoft Exchange 2007 Unified Messaging (UM).

Important:
We recommend that all customers who plan to deploy Exchange 2007 Unified Messaging obtain the assistance of a Unified Messaging specialist. They will help make sure that there is a smooth transition to Exchange 2007 Unified Messaging from a legacy voice mail system. Performing a new deployment or upgrading a legacy voice mail system requires significant knowledge about PBXs and Exchange 2007 Unified Messaging. For more information about how to contact a Unified Messaging specialist, see the Microsoft Exchange Server 2007 Unified Messaging (UM) Specialists Web site.

Important:

We recommend that all customers who plan to deploy Exchange 2007 Unified Messaging obtain the assistance of a Unified Messaging specialist. They will help make sure that there is a smooth transition to Exchange 2007 Unified Messaging from a legacy voice mail system. Performing a new deployment or upgrading a legacy voice mail system requires significant knowledge about PBXs and Exchange 2007 Unified Messaging. For more information about how to contact a Unified Messaging specialist, see the Microsoft Exchange Server 2007 Unified Messaging (UM) Specialists Web site.

Supported IP Gateways

There are many models and manufacturers of PBXs, IP gateways, and IP PBXs. However, there are basically two configurations for IP gateway devices:

IP PBX A single hardware device.
PBX (legacy) and an IP gateway Two separate hardware devices.

Dialogic and AudioCodes IP gateways have been tested and are supported for Exchange 2007 Unified Messaging.

For a list of supported IP gateways, see Telephony Advisor for Exchange Server 2007.
For more information about the latest support and configuration information available for AudioCodes IP gateways, see the Microsoft UM Specialist Resource Page.
For more information about the latest support and configuration information for Dialogic IP gateways, see the Dialogic Documentation Web site.

Note:

The third-party Web site information in this topic is provided to help you find the technical information you need. The URLs are subject to change without notice.

Note:
The third-party Web site information in this topic is provided to help you find the technical information you need. The URLs are subject to change without notice.

Correctly configuring IP gateways for your organization is a difficult deployment task that must be completed to successfully deploy Exchange 2007 Unified Messaging. To help answer questions and give you the most up-to-date IP gateway configuration information, see Telephony Advisor for Exchange Server 2007. That topic provides you with IP gateway configuration notes and files that you must have to correctly configure your organization's IP gateways to work with Exchange 2007 Unified Messaging.

For More Information

For more information about IP PBX and PBX support, see IP PBX and PBX Support.