From Org A to B calendar sharing was working but ORG B to A was not working. This world is expanding big and today’s need is collaboration and many organizations are following it.
This is increasing mergers and acquisitions which is resulting one company with multiple organizations.
However, be careful, don't create too many lists, and furthermore, give thought to meaningful names for your lists.
I will not go into how to configure SMTP to allow for this as this article is focused on Free/Busy. RPC Endpoint mapper will tell the requesting server to use a specific port above port 135.Using cmdlets like those below will save you time, more so when you realize that every Exchange 2007 configuration task has a faster command-line equivalent.Furthermore, certain commands are ONLY available in the Shell, for example, new-Global Address List.BTW, neither of these changes require that you run IISReset - they go into effect immediately.I have seen a lot of posts out there in which people have quite a bit of issues with Free/Busy coexistence between Domino and Exchange 2007.Web Service Poll Interval (if you’re using Exchange Server 2007/2010) or MAPIPoll Interval (if you’re using Exchange Server 2003) and Calendar State Publication Interval. Lync determines when to change your presence from for example, Available to In a Meeting with this data.