Step by Step: Office Communications Server (OCS 2007)

Lync PSTN regulations in India: Enterprise Voice compliance challenges
There are many countries (including India) where telecom restrictions require national or international calls to go over PSTN (and not over IP) because of toll bypass reason. These countries may want to preserve national and international tolls by applying these voice compliances. Read More

A computer that is running Lync Server 2010 may stop responding with RtcSrv.exe consuming 100 percent of CPU resources in Multi Forest deployment.
There are two AD forests. Let’s say Forest-A and Forest-B. We have Lync in Forest-B. User has AD accounts in both Forest-A and Forest-B. Users in Forest-A login to their domain with integrated credentials as any one does, but use Forest-B AD user credentials to login to Lync. There is no trust relationship between the forests. There is a need to establish the trust between the two forests. Once trust is established, users notice that the Lync client keeps disconnecting often. Upon troubleshooting, we found out RtcSrv.exe on Forest-B Lync Front end server was using 100% CPU resources. Read More

Lync Attendee is prompted to use for Online Meetings even though Lync client installed
Users who has Lync client installed try joining Online Meeting, Lync attendee client is being prompted to use for the Meeting instead of using existing Lync Client. Read More

IM Slowness, IM Failure issue when using OCS/Lync Public IM Connectivity with AOL
When you are using OCS/Lync Server you might face issue with Public IM connectivity with AOL. Public IM connectivity works fine with Yahoo.com and MSN. However with AOL you might face IM delays, IM drops etc. Well Guys!!! You don’t have to worry, I too have faced this issue and after lots of efforts I was able to resolve this issue. Below is the detailed resolution for the same. Read More

Login failure in Lync 2010 or Office Communicator 2007 R2
While login on Office Communicator 2007/R2/Lync 2010 client in Lync Server 2010 enviornment you might face login failure issue with the below error messages. 1. Lync was unable to sign in. Please verify your logon credentials and try again. If problem continues, please contact your support team. 2. Cannot sign in to Communications Service. You may have entered your sign-in name, username, or password incorrectly, or the authentication service may be incompatible with this version of the program. If your sign in information is correct and the problem persists, please contact your system administrator. Read More

Removing Lync 2010 Standard Edition Server from Lync Deployment
This articles explains step by step approach to remove Lync Server 2010 Standard Edition... Read More

Lync Server 2010 : RBAC limitation
RBAC restrictions work only on administrators working remotely, using either the Lync Server Control Panel or Lync Server Management Shell. A user sitting at a server... Read More

Lync Server 2010 CMS replication error:
With Microsoft Lync Server 2010, configuration data about servers and services is moved to the Central Management store. The Central Management store provides a more robust, schematized storage of the data needed to define, set up, maintain, administer, describe, and operate a Lync Server 2010 deployment. It also validates the data to ensure configuration consistency. Read More