Question : Alternative to Exchsync to synchronize global calendars between organizations.

We are currently using Exchsync to synchronize global calendars between 3 companies in 3 different domains.  Is there an alternative solution to this which can be purchased?

Answer : Alternative to Exchsync to synchronize global calendars between organizations.

CPS Systems makes Simple Synch, which is great for synching the accounts as you desire.
Regarding the calendars, you can use the Interorg Synchronization Tool -
http://support.microsoft.com/kb/q198789
http://www.msexchange.org/tutorials/Configuring-InterOrg-Replication-Tool.html

Regards,

Bob