While changing rebuild schedule for the OAB isn't recommended by Microsoft, but you may wish to make the change.
Companion Link is aware of an issue with certain Black Berry devices where the device’s address book will show only one contact, duplicated several times, after synchronizing.
How It Works: On a scheduled basis, Epicenter Server synchronizes a copy of the GAL to a contacts folder in each user's mailbox. During installation, you configure Epicenter Server by telling it which address book to distribute, who should receive the address book, and how often to send updates.
Then Active Sync synchronizes those changes to each user's device. The address book could be your Exchange GAL, an Exchange address list, or an Exchange Public Folder.
All other contacts do not display on the device even though they may be present in the device’s internal database.
For the version for Exchange 2007, click here: Offline Address Book Errors - Exchange 2007 With the introduction of cached mode in Outlook 2003 and higher, the Exchange offline address book has become more critical.
Microsoft is conducting an online survey to understand your opinion of the Technet Web site.
If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.
The Problem: Your smartphones and tablets easily sync with a user's Outlook Contacts folder, but there is no built-in way to sync the GAL (Global Address List) to employees' phones, or to sync a Public Folder containing contacts.
This means that address book entries saved by users rapidly become out of date.