I recently worked with a customer that has a rather large OCS deployment.  Five Edge servers, two Director servers and Seven Front End servers.  They mainly leverage OCS for its IM/Presence and Live Meeting features.  All users are remote...

You want to generate a new meeting ID as the default (authenticated meetings) and you run the LYNC Server Management cmdlet Set-CsMeetingConfiguration –DesignateAsPresenter None . However, it appears you still have to choose the “customize” checkbox before...

I recently worked an issue where the default setting of “Enable refer support” caused a routing failure with an Enterprise Voice scenario.  The customer is configured with a direct SIP trunk from their ISP that’s pointed to their Lync Mediation role...

Recently I had an occasion to use the MigrationUMCustomPrompt.ps1 script that ships with EUM 2010 SP1.  This script is tremendous as it requires no interaction or variables to be set.  It took less than 5 minutes to migrate over 70 custom UM...

I recently worked an issue where there were two dial plans defined in Exchange Unified Messaging, one for the Telephone (PBX) and the other for Office Communications Server (OCS).  When a call was made to the Auto Attendant associated with the PBX...

There are four main parts when planning either a migration from EUM 2007 to EUM 2010 and/or having a co-existence in place.   Associate Exchange UM 2010 with existing/legacy Exchange UM 2007 Dial Plan Associate IP Gateway to Exchange UM 2010 Upgrade...

I recently worked an issue where the Dialogic DMG 1008 Media Gateway would send diversion to the Exchange UM 2010 SP1 server and the net result was when we dialed the subscriber access number, we were presented with a message of, "Sorry the person...

In Exchange 2010 UM SP1 we have changed our platform to UCMA. We are now doing more checks on incoming SIP requests to make sure it is compliant and to avoid any undesirable effects. As a result, an invalid end quote will cause a request to be denied...

I worked a support case recently that involved an OCS 2007 R2 Enterprise deployment with two Front Ends and a two Edge array, load balanced by Brocade/Foundry Load Balancer. Example of the working configuration follows. Basically, the internal facing...

The Live Meeting Console installation will fail when the Local Security Policy and/or Group Policy Key, “Turn Off Application Compatibility Engine” is set to Enabled. When installing drivers in the 32bit version for Live Meeting Console (which is not...

I wanted to further add to my May 11th post of when a users SIP URI is assigned to the email attribute of a security group. The net effect of this is the random ability of that user to IM all other OCS enabled users. In addition, all other OCS enabled...

The following is a synopsis of an issue I had and things I learned with customer that is using three OCS 2007 R2 Edge servers load balanced and NAT/firewalled both internally and externally. At first, all the edges external interfaces were non-routable...

Problem When using the Invite by Email option found in the Live Meeting 2007 client, users would see the error message "Unable to send e-mail invitations. If you have Microsoft Outlook 2002 or later, make sure it is your primary email program."...

Symptoms Specific userA is having trouble starting IM conversations with users very sporadically. If userA tries to initiate a chat with a user they get back an error "The following Message was not Delivered to userB" UserB who userA tries to...

Symptoms R2 MOC Client issue with status showing incorrectly - showing as offline/online, not accurate. Cause Checking the Communicator UCCAPILOG.log from a customer’s R2 MOC Client I found the following: - SIP/2.0 409 Conflict - ms-diagnostics: 2044;reason...

So you’ve got OCS deployed and you need to start Archiving and using CDR.  This also applies to the Monitoring Server but for example purposes, I will be using the Archiving and CDR Server.  The install process is relatively straight forward...

In certain deployment scenarios where OCS is deployed with multiple remote locations connected by WANs, the need for an alternate URL for the GAL files to be downloaded from is preferred. OCS R1 does not allow for this configuration by default. Settings...

An argument can be made that when viewing Meeting Trends Reports through the Hosted Live Meeting Manager, a month is a month, no matter what time zone the current logged in user is set to. In reality, a month is not a month when considering time zones...

Symptoms When viewing Meeting Trends Report(s) from the Hosted Live Meeting Service, user_A shows different values compared to when user_B views Meeting Trends Report. Cause User accounts preference settings had different time zones configured. Resolution...

PowerShell is what you make out of it. It's a base for powerful scripting that can help you determine specific information about an OCS deployment, change a single attribute of a single user or change multiple attributes on thousands of users. This script...