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Thanks Guys, appreciate your feedback.
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I have been tasked to migrate our OCS 2007 R2 server to Lync 2013. There are about 200 clients using basic functionality, IM, VM, Conferencing. I am unable to find a step-by-step guide on how to get started. There are hundred of articles but in bits and pieces. I would very much appreciate if someone can point me on how I can get started. It would be nice to get a solution which meets high availability and DR.<br />
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Thanks for your help.
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I have been tasked to migrate our OCS 2007 R2 server to Lync 2013. There are about 200 clients using basic functionality, IM, VM, Conferencing. I am unable to find a step-by-step guide on how to get started. There are hundred of articles but in bits and pieces. I would very much appreciate if someone can point me on how I can get started. It would be nice to get a solution which meets high availability and DR.

Thanks for your help.

Migrate OCS 2007 R2 to Lync 2013

Instant messaging (IM) is a type of online chat that offers real-time text transmission over the Internet. A LAN messenger operates in a similar way over a local area network. More advanced instant messaging can add file transfer, clickable hyperlinks, Voice over IP, or video chat. Non-IM types of chat include multicast transmission, usually referred to as "chat rooms". Depending on the IM protocol, the technical architecture can be peer-to-peer (direct point-to-point transmission) or client-server (a central server retransmits messages from the sender to the communication device).

Chat / IM

Web conferencing describes various types of online collaborative services including web seminars ("webinars"), webcasts, and peer-level web meetings. In general, web conferencing is made possible by Internet technologies, particularly on TCP/IP connections. Services may allow real-time point-to-point communications as well as multicast communications from one sender to many receivers. It offers data streams of text-based messages, voice and video chat to be shared simultaneously, across geographically dispersed locations. Applications for web conferencing include meetings, training events, lectures, or presentations from a web-connected computer to other web-connected computers. Popular titles include GoToMeeting, Cisco WebEx, Microsoft Lync, TeamViewer and Skype.

Conferencing Software

Microsoft server applications are those applications developed specifically, but not necessarily exclusively, on the Windows Server platform. In addition to well-known products like SQL Server, Exchange, Internet Information Services (IIS), Microsoft Dynamics, Forefront, Lync and Sharepoint, they include applications like Skype, BizTalk, Hyper-V, Groove and Commerce Server. Server applications are managed with the Microsoft System Center.