Hello,
We have two Exchange organisations:
- A (Exchange 2003 SP2)
- B (Exchange 2010)
we want to migrate from A to B. the two organisations have to coexist during the migration (6 months). during this time the users have to share the same GAL and Calendar (Busy/Free informations).
What are the steps to follow ?
is there any docs/links treat this subject ?
Regards