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Content
This document describes the configuration required to setup Siemens HiPath3550 and AudioCodes MP-
11x FXO using analog lines with inband DTMF as the telephony signaling protocol. It also contains the
results of the interoperability testing of Microsoft Exchange 2007 Unified Messaging based on this
setup.
Intended Audience
This document is intended for Systems Integrators with significant telephony knowledge.
Technical Support
The information contained within this document has been provided by Microsoft, its partners or
equipment manufacturers and is provided AS IS. This document contains information about how to
modify the configuration of your PBX or VoIP gateway. Improper configuration may result in the loss
of service of the PBX or gateway. Microsoft is unable to provide support or assistance with the
configuration or troubleshooting of components described within. Microsoft recommends readers to
engage the service of an Microsoft Exchange 2007 Unified Messaging Specialist or the manufacturers
of the equipment(s) described within to assist with the planning and deployment of Exchange Unified
Messaging.
Microsoft Exchange 2007 Unified Messaging (UM) Specialists
These are Systems Integrators who have attended technical training on Exchange 2007 Unified
Messaging conducted by Microsoft Exchange Engineering Team. For contact information, visit here.
Version Information
Date of Modification
Details of Modification
21 March 2007
Version 1
2
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