What are the differences between BlackBerry Internet Services (BIS) and BlackBerry Enterprise Server (BES)?
BlackBerry Internet Service (formerly BlackBerry Web Client or BWC) is a hosted service provided to all BlackBerry subscribers who have a Rogers/Telus data plan. BlackBerry Internet Service only provides subscribers with the ability to synchronize (every 15 minutes) POP3/IMAP e-mail hosted at an ISP or e-mail portal (such as Yahoo! Mail or MSN Hotmail). PIM data such as calendar and contacts cannot be synchronized over the air. BlackBerry Enterprise Server is an additional service that allows BlackBerry device to synchronize in real time e-mail (Microsoft Exchange, Lotus Domino, and Novell GroupWise) and PIM data (contacts, calendar, and tasks). 201.
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