About Response Group Service and its features : Response Group Service provides a wonderful way to create and configure one or more small response groups for the purpose of routing and queuing incoming phone calls to one or more designated agents. These response groups can be very useful for departments or workgroup environments...Read More

How to enable save password option for MOC users : This article talks about how to enable save password option to MOC users...Read More

How to increase the group chat file transfer size limit : This article talks about how to increase the size limit of group chat file transfer...Read More

Virtualization support for Office Communications Server 2007 R2 : Office Communications Server 2007 R2 can be deployed onto Windows Server 2008 Hyper-V, or onto any virtualization solution that is a certified partner through the Server Virtualization Validation Program (SVVP) certified partners for the following workloads...Read More

Unable to login to Group Chat console : This article talks about known group chat sign in issue and how to troubleshoot it...Read More

Group Chat logging : This article talks about group chat logging...Read More

Known OCS Activation Errors : This article talks about known OCS Activation error (0xC3EC796C and 0x80070533)...Read More

LCS or OCS users can't login : At times you might experience a strange kind of login issue. Most of the users can login but one or few users can't. Most of the times you face this issue due to SIP related AD attributes issue. When problem users would try to login in MOC, they will get following error...Read More

Known Pool Creation Errors : This article talks about known pool creation errors in LCS or OCS infrastructure...Read More

Microsoft office Communications server 2007 R2 New Databases: This article outlines the new databases in Microsoft Office Communications Server 2007 R2...Read More

Microsoft office Communications server 2007 R2 Device updater: This article outlines the device updater component of Microsoft Office Communications Server 2007 R2...Read More

Microsoft office Communications server 2007 R2 Co-location policy: This article outlines the co-location policy of Microsoft Office Communications Server 2007 R2...Read More

Microsoft office Communications server 2007 R2 ports and protocols: This article outlines the required Microsoft Office Communications Server 2007 R2 ports and protocols...Read More

Microsoft Office Communications Server 2007 R2 Standard Edition: Few words about Microsoft Office Communications Server 2007 R2 Standard Edition...Read More

Microsoft Office Communications Server 2007 R2 Enterprise Edition: Few words about Microsoft Office Communications Server 2007 R2 Enterprise Edition...Read More

Microsoft Office Communications Server 2007 R2 Archiving Server: New features in Microsoft Office Communications Server 2007 R2 Archiving Server...Read More

New features of Microsoft Office Communicator 2007 R2: New features in Microsoft Office Communicator 2007 R2...Read More

IPSec Exceptions for Office Communications Server 2007 R2 services : Following table presents the required IPSec exceptions for OCS 2007 R2 services...Read More

New services in Office Communications Server 2007 R2 Front End Server : Office Communications Server 2007 R2 front end server also includes the Application server. The OCS 2007 R2 Application Server has following services...Read More

SIP Trunking and Office Communications Server 2007 R2 : The purpose of a SIP Trunk in an Office Communications Server topology is to enable an enterprise to connect its on-premises voice network to a service provider offering Public Switched Telephone Network (PSTN) origination and termination. Relying on an independent server provider for PSTN connectivity eliminates the need to deploy and maintain IP-PSTN gateways...Read More

What is SIP Trunking? Advantage of a SIP Trunk : SIP Trunking is a service that permits businesses that have a PBX installed to use Voice-over-IP (VoIP) even to outside the enterprise network by using the same connection as the Internet connection.A SIP Trunk is a service offered by an ITSP to use SIP to setup communications between an enterprise PBX and the ITSP...Read More

LCS \ OCS user login problem in multi forest environment : Office Communications Server is deployed in one forest, a resource forest that hosts Office Communications Servers but does not host any logon enabled user accounts. Outside of the resource forest, user forests hosts enabled user accounts but no Office Communications Servers. Within the resource forest, a corresponding disabled user account or contact exits for each user account in the user forests...Read More

Voice Mail Tab in Outlook 2007 : In this case, all voice mail tab settings are visible, but these are disabled. you can't make any change in the settings. You can still access the voice mail through the Outlook Voice Access. You can also make the changes in voice setting using Outlook Web Access. Follow the following steps to resolve the issue...Read More.

How to configure RCC? : Remote Call Control often referred as RCC, is a way to let Microsoft Office Communicator ability to control your PBX phone. This article talks about how to configure the LCS\OCS setup for RCC...Read More.

What is RCC? : Remote Call Control often referred as RCC is a way to let Microsoft Office Communicator ability to control your PBX phone...Read More.

All about Public IM Connectivity (PIC) : This article talks about Public IM Connectivity. It talks about the PIC, benefits of PIC, Licensing, Price, supported domains and limitation around it...Read More.

Certificate error while communicating with AOL user: AOL has changed their root certificates on their SIP Access Gateway at approximately 12/2/2008, 4:00 AM EST. As a result, the America Online Root CA 1 certificate, which can be obtained from https://pki-info.aol.com/AOL/, needs to be in the trust list of all LCS/OCS PIC servers connecting to sip.oscar.aol.com by 12/2/2008, 4:00 AM EST....Read More.

Microsoft Office Communications Server 2007 Enterprise Edition using Direct SIP to Cisco Unified Communications Manager 7.0(1) Simultaneous Ring Feature: This document describes the simultaneous ring feature interoperability and documents the steps and configurations necessary for Cisco Unified Communications Manager (Cisco UCM) Release 7.0(1) to interoperate with Microsoft Office Communications Server (OCS) 2007 Enterprise Edition. It aims to provide a good understanding of what works and what does not work in terms of the feature interaction between a Cisco UCM device and Microsoft Office Communicator. It also provides guidance to deployment participants regarding the limitations, expected behaviors, and known issues. Please note that this document does not address performance and scalability, which are part of a broader criteria for a deployment-ready solution...Read More.

Exchange UM & Required certificate: This article talks about certificate on the Exchange UM Server. It covers need of certificate on UM, how to create and install certificate on the exchange UM, how to assign certificate on UM, how to verify the correct certificate on the Exchange UM etc...Read More.

OCS Contact Manager: A multipurpose tool to manage OCS contacts...Read More.

Contact List Migration from Sametime to LCS\OCS: When you take decision to migrate your users from Sametime to LCS\OCS, the most important piece of migration is migration of buddy list from Sametime to LCS\OCS. This article aims at providing information about Instant Buddy List Migrator from Instant Technologies...Read More.

Co-existence of LCS\OCS and Sametime: By default Sametime and LCS\OCS don’t work together. It means a Microsoft office Communicator (MOC) user can’t communicate with the Sametime user. You need to use third party solutions to enable the same. This article aims to provide information regarding this topic. It also covers migration from Sametime to LCS\OCS...Read More.

Monitoring OCS 2007 using MOM 2005 sp1: Monitoring Office Communications Server 2007 using MOM 2005 SP1 simplifies the task of an OCS admin to ensure that the OCS 2007 server is doing fine. The Office Communications Server 2007 management packs for MOM 2005 generate alerts from service states, events, performance counters, and other instrumentation that is exposed in Office Communications Server. In addition, MOM 2005 provides a variety of notification options for operators...Read More.

Web Conferencing software: Web conferencing is a way to join in the meeting from web (internet or intranet). Using web conferencing you can share documents, presentations etc.  Now web conferencing is rapidly becoming a way to organize the meeting in corporate. This is definitely increasing the efficiency of employees in order to share the data, while they are located at different locations. This also gives you ability to have audio and video communication during the meeting (depending on application and edition). This article talks about different software which provide the web conferencing feature...Read More.

Microsoft debuts OCS 2007 R2 (New features): Office Communications server 2007 is already doing wonder when it comes to IM, live meeting and AV conferencing (with all additional concepts like communicator web access, archiving etc…). If one thing I ever wanted to have great improvement at, is the voice thing. It’s already good but somewhere I thought it’s not as great as other features are. I went through so many sources and concluded that the next release of OCS (OCS 2007 R2) is coming up with some real time great improvements and new features as far as voice support in OCS goes...Read More.

Send SMS through Microsoft Office Communicator: Isn’t it great to have this feature in Microsoft Office Communicator (MOC 2007)? Certainly… yes! Recently I stumbled over an application which can help you having this feature in MOC. The application is provided by Geomant. It provides an SMS plug-in for OCS 2007. Geomant's SMS for Microsoft Communicator enables SMS Text message to be sent directly from Microsoft Communicator...Read More.

No missed call notification or voice mail on the OCS Phone Device: We have seen so many times that the customer would not get missed call notification or voice email on the OCS Phone device. Though Microsoft office communicator will keep receiving missed call notification. So the missed call notification and voice emails are shown in MOC 2007 but not on OCS Phone devices...Read More.

How to use Address Book Configuration Tool: Its been always an interesting topic to discuss about the scope of users who would be shown in the address book search. Suppose you have an organization where OCS is deployed but not all of the users are enabled for OCS. You have broadly three categories of users... Read More.

Permission requirement to admin OCS 2007: This article talks about the required permission for the OCS 2007 administrators... Read More.

All about ports used in OCS 2007 deployment: This article talks about the ports used in OCS 2007 deployment... Read More.

Outlook integration with Microsoft Office Communicator 2007: There are some shared DLLs between Office Communicator and Office Outlook. This article talks about them and it also talks about the well known "Outlook Integration Error"... Read More.

How to uninstall the OCS Server: This article talks about how to uninstall the OCS Server... Read More.

How does OCS Server select the Exchange UM Server for Voice mail: This article talks about how does OCS Server select Exchange UM server for voice mail functionality... Read More.

How to connect OCS Phone Device: This article talks about how to connect OCS Phone device (Tanjay) to OCS Server... Read More.

How to find out version of LCS or OCS servers: This article talks about how to find out the version of installed OCS or LCS Servers. Sometimes its really tricky to find out if we have installed beta version or released version of OCS Servers... Read More.

SQL queries to retreive Archived Messages from the SQL Server: When we install and activate Archiving server, "LcsLog" is the database which gets created at the SQL Server. If users are enabled for archiving, the messages exchanged between them will be archived in this database. This Article talks about few scripts what you can use in order to get those archived messages... Read More.

Inbound Call Logic: This article explains the steps involved when an external PSTN caller makes call to the internal user... Read More.

Reverse Name Lookup in OCS 2007: Reverse number look-up is the process of mapping a user’s number to a corresponding SIP-URI for the purpose of routing calls over the IP network to multiple user endpoints... Read More.

Understanding how to use dbimpexp.exe in different scenarios: Dbimpexp.exe is a tool which helps us exporting and importing contact list of a particular user or every user. we can use this tool on both editions (Standard edition and Enterprise Edition) of LCS and OCS servers... Read More.

How to find out Per-User Reports: We can use the OCS 2007 graphical user interface to find out user reports. This is particularly useful when you want to know how many contacts are added for the user, how many places the user is logged in, which version of OCS client is the user using etc...Suppose there is a user with SIP URI xcha@ocsdom.local. You want to find out following information regarding this user... Read More.

File Transfer for Office Communicator and Live Meeting Users: If you want to disable file transfer using office communicator and at the same time you want to let Live Meeting client users to transfer the files then how to achieve this! Obviously we can... we will discuss about how to do in this article... Read More

Integration of Nortel Multimedia Conferencing with OCS 2007: While Nortel Multimedia Conferencing can be deployed as a standalone audio/video-conferencing solution, the Nortel and Microsoft Innovative Communications Alliance has enabled Nortel to deliver a robust and proven IP audio-conferencing solution that can be seamlessly integrated into a Microsoft desktop environment. Multimedia Conferencing can be easily integrated with the Microsoft Live Communications Server 2005 and Office Communications Server 2007 for a truly collaborative unified communications environment... Read More.

Technical Resources for Office Communications Server 2007: A great collection of technical resources about OCS 2007. this page contains link of so many important OCS 2007 webcasts and documents what is essential to learn for any unified communications professional... Read More.

How to use OCSConfigureTelUri.wsf?: Any organization having good number of employees will always have tough time manually populating Line URI field for all of the users. OCS resource kit has a script OCSConfigureTelURI.wsf which helps an OCS admin to complete this task without putting much effort... Read More.

How does Office Communicator 2007 Phone Edition get Root CA certificate?: Since communications between Office Communicator 2007 Phone Edition and Office Communications Server 2007 is encrypted (by TLS and SRTP), therefore the Office Communicator 2007 Phone Edition needs to have trusted root CA of the certificate configured on the office communications server 2007. This article talks how telephony devices get Root CA certificate from the Active Directory... Read More.

How to change the custom status in the office communicator 2007: Ever wondered how to add additional  status info in office communicator? Are you bored to set the same status information? Do you really need to set the status info which is not in built in office communicator? Microsoft office communicator gives you option to set your own status info in office communicator with little effort... Read More.

Reverse Proxy - A virtual OCS Edge server role: Reverse Proxy is a virtual OCS Edge server role which extends three functionalities to the OCS remote users... Read More.

Macintosh OS and OCS 2007 clients: There are three different OCS 2007 clients what an OCS user can use on Macintosh operating system... Read More.

OCS 2007 and Windows Server 2008: Finally Microsoft has given green signal to deploy OCS 2007 in a domain with Windows Server 2008 running as a Domain Controller. Following are the points which should be considered while deploying Office Communications Server 2007 in a Windows Server 2008 domain... Read More.

How to disable Enhanced Presence: Microsoft never recommends to disable Enhanced presence of an OCS 2007 user. Disabling enhanced presence will bring that user out of supportability scope and at the same time the user will miss the features introduced by Enhanced Presence. Still you might need to disable it to let an OCS user login into MOC 2k5... Read More.

Interoperability between OCS 2007 and Cisco Unified Communication Manager (CUCM) 6.0(1) : The above document describes feature interoperability and documents the steps and configurations necessary for Cisco Unified Communication Manager (CUCM) 6.0(1) and Cisco Unified Presence (CUP) 6.0(1) to interoperate with Microsoft Office Communication Server (OCS) 2007 Enterprise Edition... Read More.

Support for 64 bit Operating Systems (OCS 2007): OCS 2007 console has some reservation when you install OCS 2007 roles or administrative tools on a 64 bit OS.... Read More.

Publicly routable IP address on the external interface of the AV Edge Server: Following are the two reasons which leads an AV edge server to have routable IP Address on its interfaces... Read More.

How to enable logging for office communicator 2007: When you experience trouble with IM and want to see the error which is causing this trouble to happen, its right time to take uccp log and analyze it... Read More.

How to enable logging for Live Meeting 2007: When you experience trouble with LM connectivity and want to see the error which is causing this trouble to happen, its right time to take uccp log and analyze it... Read More.

What is Enhanced Presence

Video Conferencing for Masses vs. Personal Telepresence (Looks an honest comparison between OCS Video conferencing and Cisco Telepresence)

Where to store OCS Global Setting

ISA 2006 sp1 is available for download!

Is UDP the best transport to carry SIP traffic ( A thorough analysis by Microsoft)?

Important for PIC enabled organizations (Recent Yahoo and MSN IP changes)

Hotfix: ABSConfig.exe behaving unexpected