How many public certificates do I *really* need?

– How many public certificates do I need, in order to configure external access to my OCS 2007 pool? – 3. One for the HTTP Reverse Proxy, one for the OCS Access Edge and one for the OCS Web Conferencing Edge. – Even if I’m using a consolidated Edge topology? – Yes! – But can’t…

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Connecting Communicator R2 to Exchange UM

Recently, I was doing some tests with Exchange Unified Messaging, but when I tried to connect to Exchange Voice Mail using Communicator R2, I got the following error: "Incompatible security setting.  The call could not be completed because security levels do not match" An Exchange UM dial-plan supports three different security levels: Unsecured, SIP Secured,…

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Upgrade Tanjay 1.0.199? Yes we can!

I recently had to upgrade 2 LG-Nortel IP Phone 8540 (aka Tanjay or OCPE) to the latest firmware available: Microsoft Office Communicator 2007 Phone Edition v1.0.522.101. The device was running version 1.0.199 (1.23) of the software which was still a Beta version and had, of course, some annoying bugs.   So, how do you upgrade…

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OCS 2007 Clients: Latest Versions (October 2008)

Every OCS deployment needs the appropriate clients rolled out to the users. There are 3 client programs that almost every OCS solution must have: Office Communicator 2007 Live Meeting 2007 Office Communicator Mobile 2007 Since there has been some upgrades and patches to the RTM versions of these programs, I thought I could provide the…

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Office Communications Server 2007 R2 Announced

Microsoft announced this week the next version of Office Communications Server 2007, codename Wave 13, but that will be officially named as Office Communications Server 2007 Release 2 (R2). New Capabilities on a Strong, Unified Foundation Key new features of Office Communications Server 2007 R2 include the following: Next-Generation Collaboration Dial-in audioconferencing. Office Communications Server…

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UC Pilot Bill of Materials

In my job, I do a lot of UC pilots. Before heading to a potential customer, I usually write a small technical document with the hardware and software requirements. Over time, I noticed that these pilots are very similar, that’s why I decided to write this post. My objective is to list a small Bill…

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How to publish a private certificate chain for Communicator Phone Edition (aka Tanjay)

Communication between the Communicator Phone Edition and Office Communications Server 2007 is by default encrypted using TLS and SRTP. Therefore the device needs to trust certificates presented by Communications Server 2007 servers. If you’re using a well known Public Root CA (see table below), the certificate will automatically be trusted by the device. Vendor Certificate…

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Status: Available!

Unified. Now. This is the tagline for the Microsoft Unified Communications (UC) offer for FY’09. You may remember other taglines, such as "Unified. Simplified.", which was last year’s tagline or "VoIP As You Are", Microsoft’s approach to enterprise VoIP. Each of these taglines represent Microsoft vision for Unified Communications, where presence is the heart of…

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