Top Microsoft Lync & OCS from Microsoft Support

Lync 2010 client returns the error notification – Cannot complete the transfer
This article provides steps to correct the issue.

To make Response Group available to users, you must configure agent groups, then queues, and then workflows
This article lists Response Group Configuration Prerequisites and Permissions

Determining the number, size and location of PSTN gateways is critical to planning your Enterprise Voice infrastructure
PSTN Gateway Deployment Options

Lync Server 2010 Planning Outbound Call Routing and the PSTN Gateway
Lync Server 2010 Planning Outbound Call Routing – PSTN Gateway

How to to transition from the federation route of your Microsoft Office Communications Server 2007 R2 Edge Servers to Microsoft Lync Server 2010 Edge Servers
Edge Servers to Microsoft Lync Server 2010 Edge Servers Use the procedures in this article to transition the federation route and the media traffic route from your Office Communications Server 2007 R2 …

If the hosting provider changes its proxy server you will need to delete and then recreate the entry for that provider
Configure Federation Support for a Lync Online Domain

A contact is displayed with an incorrect picture and incorrect presence information in Lync 2010
This article can direct you to a fix for this issue. This issue occurs because Lync 2010 does not merge the contact information correctly.

A user is displayed as another user in Office Communicator 2007 R2
This article can direct you to a fix for this issue. This issue occurs because Office Communicator 2007 R2 does not identify user A and user B correctly if the two users have the same hash-key of thei …

The telephone number is not visible in the Lync 2010 contact card
This article provides steps to correct the issue. This occurs because the telephone number was not entered by using the E.164 format. Numbers in the E.164 format typically start with a plus sign (+) p …

Presence is unavailable, and the status is displayed as Presence Unknown, instant messages cannot be delivered or sent to external contacts that you added to a Windows Live EASI domain
This article describes issues that can occur if you add Windows Live, MSN, or Windows Live Hotmail contacts to a Microsoft Lync Online user’s contact list using an E-mail As Sign-In (EASI) ID domain i …

How to update from the Evaluation Version of Microsoft Lync Server 2010
If you have installed the Evaluation version of Microsoft Lync Server 2010, you will eventually need to update that installation a licensed copy of the software; that's because the evaluation ver …

How to install Lync 2010 in the enterprise
How to install Lync 2010 in the enterprise using the Lync 2010 setup executable program. This article also covers scripting your deployment.

How to install Lync 2010 Attendant in the enterprise
Depending on the complexity of the installation scenario, there are several options for installing Microsoft Lync 2010 Attendant.

The installation of Lync 2010 by using Windows Installer (MSI) fails
The Lync 2010 client must be installed by using the client executable file. This article describes the location of the file and several ways in which it can be deployed.

"Insufficient access rights to perform the operation" in Lync 2010 Server Control Panel
This article can help resolve the error "Active Directory operation failed." "Insufficient access rights to perform the operation."

Understanding and Troubleshooting Microsoft Exchange Server Integration White Paper
The purpose of this white paper is to introduce you to some of the new client features that are available when Microsoft Lync Server 2010 is integrated with Microsoft Exchange Server 2010.

Administering the Address Book Service
A view of the Address Book requirements.

Microsoft Lync Server 2010: Access the Address Book with Ease
Lync Server 2010 includes several improvements to its address book functionality. Taken together, these improvements provide your users with all the required address book information.

Addressing Threats to On-Premises Conferences for Lync Server 2010
An explanation of On-premises Web conferencing built on top of the Lync Server 2010 basic security framework

Meetings and Conference Calls
Common issues and tasks related to meetings and conference calls in Microsoft Lync 2010 are listed

Migration Considerations for Meetings
This article discusses how to migrate users and the user experience during migration

Error code -1007780547” when you start the Front End service in Lync Server 2010 or in Microsoft Office Communications Server
This article explains how the problem occurs if the cross-database chaining option has been disabled for the RTC database and for the RTCDyn database. The cross-database chaining option must always be …

Lync Server 2010 Collaboration and Application Sharing Capacity Planning
The tables in this article provide measurements for bandwidth and disk usage for application sharing, and for conferencing content collaboration.

Office Communications Server 2007 R2 Desktop Sharing Architecture
This article discusses several new or enhanced architectural components to to support desktop sharing in Office Communications Server 2007 R2

Desktop Sharing Call Flows
The following article describes how the signaling and media flows are established in several basic desktop sharing examples.

Known issues that occur with public instant messaging and Communications Server
This article describes the known issues that occur when Live Communications Server 2005 with SP1, Office Communications Server 2007 and Office Communications Server 2007 R2 are configured for public i …

Move Lync Enabled Users to Another Pool
You can use Lync Server Control Panel to assign users to a specific server or pool. You can also use the Lync Server Management Shell to move users. You can use filters in Lync Server Control Panel an …

Move Remaining Users to Lync Server 2010 (Office Communications Server 2007 R2 Migration)
You can move users to the new Microsoft Lync Server 2010 deployment by using either Lync Server Control Panel or Lync Server Management Shell. You must meet some requirements to ensure a smooth transi …

Lync Server 2010 Load Balancer Partners
This article describes which Server Load Balancer partners have completed interoperability qualification testing with Lync Server 2010 and contains pointers to accompanying deployment white papers hos …

Troubleshooting Devices
Microsoft Lync Server 2010 provides new and updated tools for monitoring devices and troubleshooting device issues.

Preparing Active Directory Domain Services
In Microsoft Lync Server 2010 communications software, you can use the Lync Server Deployment Wizard to prepare Active Directory Domain Services (AD DS), or you can use Lync Server Management Shell cm …

“FailedSchemaValidation” or “ServicesInClusterOfSameVersion” error occurs when you use the Merge-CsLegacyTopology cmdlet during migration to Lync Server 2010, and migration fails
This issue with migration is caused by using the Microsoft Lync 2010 Server Windows PowerShell cmdlet Merge-CsLegacyTopology during the migration process from Microsoft Office Communications Server to …

Unified Communications Open Interoperability Program – Lync Server
This program ensures that vendors providing interoperability with Microsoft unified communications solutions do so in a consistent and supportable manner, including SIP and signaling support used with …

Changes in Russian Daylight Savings Time can affect regional Microsoft Office Live Meeting Service
Russia canceled DST starting 2011. Microsoft Knowledge Base article 2640090 lists DST and time zone changes you should be aware of when using Live Meeting Service inorder to make appropriate changes.

Compare features across the delivery models for Lync Server 2010 (on-premises), Lync Online, and Office Communications Online ("OC Online").
This web site can help you decide which delivery model has the features your organization requires.

An update is available to clean up the bad state information of a user who uses an Office Communicator client to log on to a Lync Server 2010 server
When users log on to a Lync Server 2010 server by using Office Communicator 2007 R2, the the presence information is sent to public instant message (IM) clients, such as Windows Live Messenger, AOL, o …

Publishing the Lync Server 2010 Enterprise Edition topology fails when the Central Management Store is created
The topology builder in Microsoft Lync Server 2010 Enterprise Edition fails when the Central Management Store (CMS) databases are created on the Lync Server 2010 back-end server that is running Micros …

How to run Lync Server 2010 in a virtualized environment
This content explains how to configure Lync Server 2010 to run in a virtualized environment and provides detailed information on virtualization support and requirements.

How to migrate from Office Communications Server 2007 R2 to Lync Server 2010
This content guides you through the process of migrating from Microsoft Office Communications Server 2007 R2 to Microsoft Lync Server 2010. If you intend for your Office Communications Server 2007 R2 …

Capacity planning for Microsoft Lync Server 2010
How to customize your Lync Server 2010 deployment to support various numbers of users and server loads.