Category Archives: Office Communications Server 2007 R2


Using Lync 2010 client in Office Communications Server 2007 R2 environment

While the new Lync Client brings a lot of new functionalities and a complete new look, it isn’t compatible with a OCS 2007 R2 environment. Another downside is that it can’t be installed together with Communicator 2007 on a single machine. When working on both 2007 R2 and Lync 2010 projects, this means the usage…

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Exchange Unified Messaging – enable multiple mailboxes for UM

When configuring Exchange Unified Messaging, the last step in the process is to enable a mailbox for Unified Messaging. This means, each individual user from OCS need to have a mailbox, and this mailbox needs to be enabled for UM. In my situation, all OCS users already had an exchange mailbox, as only the UM…

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Configure ringing time in Office Communicator 2007 R2

Some of my Enterprise Voice customers complained about the short notice that they had to answer an incoming call. They thought the OC stopped ringing after 3-4 rings, and the call was disconnected.¬†After a short troubleshooting session with wireshark, it was easy to see that OCS terminated the call;…

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Front-end Service doesn’t start after removing another Pool

With one of my customers the project went very smooth. Installing and configuring all servers and roles, updating, configuring and tweaking all their requirements. Set up tests, approving and set a go-live date, moving all users and re-configure terminal servers by group policy, and so on. Everything smooth. Until….we removed the old pool. De-activate all…

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Polycom CX700 – certificate issue

At many clients I used and installed the Polycom CX700 (aka “Tanjay”) device succesfully. However, during my latest project, it was not that easy. As with every implementation, DNS and WINS were updated for the Device Updater, and DHCP reservations were created for the Polycom device. After installing the update succesfully, I tried to log…

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