26 July 2010
The July updates have been released and can be downloaded from here.
For details of what is included in the patches can be found here http://support.microsoft.com/?kbid=968802 along with installation details.
A few people have mentioned issues with the latest update but this appears to be because the OCS2009 DBUpgrade hasn’t been applied. This needs to be applied separately for a good description of how to apply this patch there are a number of blog entries such as the one on msunified.
Update 30 July
I left off the other updates below when I initially posted this
Office Communicator 2007 R2
Group Chat Patches 2007 R2
Communicator Phone Edition (OCPE)
10 June 2010
I still find that customers are using self signed certificates for their Exchange servers. When you install Exchange UM and want to link it to OCS you need to use a properly trusted certificate from a CA. To do this requires some messing around in Powershell and can be inconvenient. Today I spotted a blog post from Rui Silva highlighting a Certificate Management Tool from U-BTech which gives a quick and easy GUI to manage the Exchange server certificates. I haven’t tried it yet but I think it is definitely worth investigating.
25 January 2010
Microsot have recently released a Workload Architecture poster showing protocol flow, ports, DNS and Certificates. It gives a graphical representation of information found in the various OCS manuals all in one place.
This poster only shows the IM & Presence, Conferencing, Application Sharing and Enterprise Voice Worloads. However it does show everything for internal and also external access through an Edge Server.