Migrate OCS 2007 R2 to Lync 2013

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.
Antonio02Asked:
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Cliff GaliherCommented:
Microsoft has migration guidance for moving from OCS 2007 R2 to Lync 2013.

https://technet.microsoft.com/en-us/library/jj205375(v=ocs.15).aspx

If your OCS 2007 R2 is not highly available then you'll also need to follow the "planning" guidance, not just the migration guidance, since you aren't "just" migrating anymore, but are adding new components. Basically go through the planning first so you know what components you'll want for HA and then follow the migration guidance to move the actual content (databases, etc) to the newly designed topology.  But if you try to ad-hoc it, you'll end up in the weeds.
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Fu CkCommented:
Hi,


Before you begin the migration
Phase 1: Plan your migration from Office Communications Server 2007 R2
Phase 2: Prepare for migration
Phase 3: Deploy Lync Server 2013 pilot pool
Phase 4: Merge topologies
Phase 5: Configure the pilot pool
Phase 6: Move users to the pilot pool
Phase 7: Add Lync Server 2013 Edge Server to pilot pool
Phase 8: Move from pilot deployment into production
Phase 9: Complete post-migration tasks
Phase 10: Decommission legacy site

Best Regards
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Antonio02Author Commented:
Thanks Guys, appreciate your feedback.
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