Research In Motion (RIM) has made its name by providing email to wireless devices for more than ten years. It has made wireless email available around the globe and has pioneered a number of the technologies that are needed to provide seamless integration between corporate and desktop email systems and BlackBerrys in the field.
Over the years, it has perfected a technology known as push. Push is the ability to send an email out to a BlackBerry as soon as it is received by an email server rather than having to wait for the Blackberry to poll or pull information from the server based on a preset schedule. The advantages of push are many. Primary among these are that the BlackBerry does not have to wake up and ask the server if there are any new emails, and that it delivers email to the BlackBerry in near real time. RIM also added the ability to push out calendar appointments as well as address book updates and to synchronize the two functions over the air, again, using push technology. These push capabilities are originated at the BlackBerry Enterprise Server or in the BlackBerry desktop software and the push requests are then sent to the RIM servers which, in turn, send them on to the BlackBerry.
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