CDMworld

With the expanded used of Blackberry Smart phones by small and medium sized business questions arise as to exactly what the Blackberry Enterprise Server is and how it works. This article seeks to give an overview and provide insight into how and why this tool is so successful.

BlackBerry handhelds are integrated into an organization’s e-mail system through a software package called “BlackBerry Enterprise Server” (BES). Versions of BES are available for Microsoft Exchange, Lotus Domino and Novell GroupWise. While individual users may be able to use a wireless provider’s e-mail services without having to install BES themselves, organizations with multiple users usually run BES on their own network. Some third-party companies like CDMworld provide hosted BES solutions. Every BlackBerry has an ID called BlackBerry PIN, which is used to identify the device to the BES.

BES can act as a sort of e-mail relay for corporate accounts so that users always have access to their e-mail. The software monitors the user’s local “inbox”, and when a new message comes in, it picks up the message and passes it to RIM’s Network Operations Center (NOC). The messages are then relayed to the user’s wireless provider, which in turn delivers them to the user’s BlackBerry device.

The ability to have the users email delivered on demand provides a constant contact type of environment allowing users to take advantage of business opportunities or requirements as they arise.

This is called “push e-mail,” because all new e-mails, contacts and calendar entries are “pushed” out to the BlackBerry device automatically, as opposed to the user synchronizing the data by hand or on a polling basis. Blackberry also supports polling email, which is how it supports POP. Device storage also enables the mobile user to access all data offline in areas without wireless service. As soon as the user connects again, the BES sends the latest data.

An included feature in the newer models of the BlackBerry is the ability for it to track your current location through trilateration. One can view the online maps on the phone and see current location denoted by a flashing dot. However, accuracy of BlackBerry trilateration is less than that of GPS due to a number of factors, including cell tower blockage by large buildings, mountains, or distance.

BES also provides handhelds with TCP/IP connectivity accessed through a component called “Mobile Data Service – Connection Service” (MDS-CS). This allows for custom application development using data streams on BlackBerry devices based on the Sun Microsystems Java ME platform.

In addition, BES provides network security, in the form of Triple DES or, more recently, AES encryption of all data (both e-mail and MDS traffic) that travels between the BlackBerry handheld and a BlackBerry Enterprise Server.

CDMworld offers flat monthly pricing for unlimited data between BlackBerry units and BES. In addition to receiving e-mail, organizations can make intranets or custom internal applications with unmetered traffic. The offering can be for the BES as a stand-alone solution or the BES to be tightly integrated into the Microsoft Exchange Hosted Email Solution.

With more recent versions of the BlackBerry platform, the MDS is no longer a requirement for wireless data access. Beginning with OS 3.8 or 4.0, BlackBerry handhelds can access the Internet (i.e. TCP/IP access) without an MDS – previously only e-mail and WAP access was possible without a BES/MDS. The BES/MDS is still required for secure e-mail, data access, and applications that require WAP from carriers that do not allow WAP access.

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