resource mailbox in different domains

Hello,

Our company just merged with another company and the goal is to have both organizations being abe to see calendar availability and book conference rooms from either side. both organaizations are on Exchange 2010, office 2013. Both organizations would eventually be merged into one, however for now it is a challenge setting up meetings without being able to check availability and conference rooms availability. There is a trust relationship between the two forests.

Thanks.
Antonio02Asked:
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Malachi K.Commented:
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Antonio02Author Commented:
Thanks Malachi,

I was not able to check this link due to other emergencies. Hopefully go through it this afternoon and give you a status.
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Antonio02Author Commented:
Hi Malachi,

Thanks for the link, it gives me a great insight into setting up external trust, which I believe our AD guy has already accomplished. The issue I have now is calendar settings (free /busy information) and access to conference rooms so meetings can be booked by either side.
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Antonio02Author Commented:
Ok, so the final verdict is that we have to create a federated trust between the two organizations in order to get access to the free/busy information and setup conference rooms.
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Antonio02Author Commented:
Thanks for your input Malachi.
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