AstraSync™ is a new software application for BlackBerry® Smartphones that performs two-way over-the-air synchronization of email, calendar and contact data with a Microsoft Exchange, MailSite Fusion, CommuniGate Pro, Zimbra, Scalix, FirstClass or Kerio MailServer.
AstraSync does this by implementing the Exchange ActiveSync and DirectPush protocols. AstraSync can be downloaded over-the-air and runs silently in the background on the BlackBerry® Smartphone. Users can configure the name of the ActiveSync compatible server, their username and password and can select which data they wish to synchronize.