Expected outdialing behavior for ‘Play on Phone’ scenarios in Microsoft Exchange Unified Messaging

The Microsoft Exchange Unified Messaging ‘Play on Phone’ feature provides access to voice mail messages for UM-enabled users. However, instead of playing the media attachment from a voice mail message over their computer speakers, users can listen to voice mail messages on a telephone handset. When UM-enabled users work in office cubicles, use a public…

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How to get a free DID SIP Trunk for testing your Unified Communications lab environment

I recently stumbled on a free offering for a DID SIP Trunk (inbound calls only) from a company called IP Communications.  Having already added a magicJack device to my Unified Communications lab for routing both inbound and outbound calls, an additional DID line was exactly what I needed for routing calls to my Exchange UM…

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How to configure interoperability between Microsoft Exchange Server 2010 Unified Messaging and pbxnsip IP PBX version 3.0

Introduction This guide describes how to configure interoperability between Microsoft Exchange Server 2010 Unified Messaging and pbxnsip IP PBX version 3.0.  pbxnsip is an IP PBX solution for Windows that supports SIP communication over either the TCP or UDP transport protocols. When configured with a free permanent demo key, pbxnsip can be used for testing…

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Need an extra phone line for testing call flows in your Unified Communications lab? Why not try magicJack!

One day while at work, my buddy Geoff Clark and I were discussing how expensive it can be to deploy a lab environment at home, especially one that supports VoIP telephony.  When you combine the initial cost of purchasing new server hardware and telephony equipment with the monthly expense of one or more additional telephone…

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Calls routed to Exchange 2010 Unified Messaging servers may be rejected due to URI parsing logic

During the development of Exchange 2010 Unified Messaging, several changes were made to the URI parsing logic for calls that are handled by Unified Messaging servers.  When a call is routed to Unified Messaging server, each of the URI values contained in the SIP INVITE are extracted in an effort to resolve the identities of…

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‘Sorry! Access Denied’ error received when accessing Voice Mail options in Outlook 2010

While using Microsoft Outlook 2010, you may encounter the following error when accessing the Voice Mail options menu to modify your personal settings in the Exchange Control Panel (ECP): Additionally, the following two errors may appear in the Application Log of the Exchange 2010 Client Access Server located in the same Active Directory Site as…

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How PIN expiration status is calculated in Microsoft Exchange Unified Messaging

Recently, one of my customers asked me how PIN expiration is determined in Unified Messaging.  He claimed that after adding his CEO to a non-expiring UM Mailbox Policy, the CEO was prompted to change his PIN after 45 days.  Having never experienced this behavior with any other customer since the release of Exchange 2007, I…

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(Part 3 of 3) The complete step-by-step setup guide for deploying Microsoft Unified Communications products with Enterprise Voice in a lab environment using a single Windows Server 2008 Hyper-V computer and a single Internet IP address

  Configuring OCS 2007 R2 Communicator Web Access Now we will install the OCS 2007 R2 CWA role.  Although the Communicator Web Access setup program only allows you to create a single virtual server instance (internal or external), a CWA server can be configured to host both types of virtual servers on the same computer. …

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(Part 1 of 3) The complete step-by-step setup guide for deploying Microsoft Unified Communications products with Enterprise Voice in a lab environment using a single Windows Server 2008 Hyper-V computer and a single Internet IP address

As a Senior Support Escalation Engineer with the Unified Communications team at Microsoft, I help a lot of customers install Microsoft Unified Communications products in either their production or lab environment.  I often find that for many smaller organizations, the task of deploying OCS 2007 R2 and/or Exchange Unified Messaging becomes that of the existing…

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(Part 2 of 3) The complete step-by-step setup guide for deploying Microsoft Unified Communications products with Enterprise Voice in a lab environment using a single Windows Server 2008 Hyper-V computer and a single Internet IP address

  Configuring OCS 2007 R2 Edge Next we will install the OCS 2007 R2 Edge role, which provides connectivity to the internal OCS environment for remote clients.  For the purposes of this lab, we will deploy a single Edge server supporting all three roles – Access Edge, Web Conferencing Edge, and Audio/Video Edge.  While the…

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