Blackberry 957 Manual do Utilizador descarregar pdf (Página 7)

Innovation in Mobile Email

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1997-2000 Research In Motion Limited

Website: www.blackberry.net 5

and reference these addresses by name from the handheld. For example, Outlook allows the user to create a

fax address called “Joe’s Fax” that represents Joe’s fax number. If the company has a fax gateway, sending

an email message to this address will result in the message being delivered to Joe’s fax number. Because

the Redirector uses the same MAPI name resolution function as Outlook, addressing a message to “Joe’s

Fax” on the handheld will result in the message being sent to the fax number via the company’s Exchange

fax gateway.

Remote Control of the Corporate Inbox

The BlackBerry Desktop Redirector is also responsible for a number of advanced features that are not

immediately visible to the user. Features such as requesting more of a message, including original messages

in replies and forwarding messages provide the user with some ability to remotely control their desktop

inbox.

When a long message arrives in the user’s corporate inbox, only the first 2K (approximately) of the

message body will be sent initially to the handheld. If an attachment is sent in the message, only the file

name and size of the attachment are sent. If the user wishes to read more of the message, the user, using

the handheld, requests “more” and the Desktop Redirector will send the next 2K. The handheld will then

add the additional 2K piece to the original message and inform the user (as with a new email message) that

more of the message has arrived. Since most text-based communication via email is less than 2K, most

messages won’t be truncated. With this advanced “more” feature, the user can judge the value of the

message before memory and battery life is expended to deliver the additional information to the handheld.

Similarly, when the user selects “Reply with Text” or “Forward” on the handheld, only their response is

sent from the handheld to the Desktop Redirector. Back at the desktop, the Redirector will construct a

message consisting of the user’s response and the original message and send this to the list of recipients.

This ensures that the recipients receive a complete copy of the original message, regardless of its size,

while minimizing the data that is sent from the handheld. The remote forwarding ability allows users to

‘remotely’ forward long messages or attachments to co-workers to handle, to the company’s fax gateway

(see the section above discussing sending to a fax), or a public fax gateway service for delivery to a fax

machine at their location.

Filtering

While the “push” model allows for paging-like responsiveness, given the typical daily volume of email, the

notification of each new message can be disruptive. The objective of the BlackBerry wireless email

solution is to allow users to take control of their email, not to increase email’s control of them. To this end,

extensive filtering capability is included in the Desktop Redirector to allow the user to control the flow and

priority of new messages. Messages can be filtered on a wide range of criteria (see Figure 4). Filters are set

in the BlackBerry Desktop Manager and stored on the Exchange Server. These filters continue to operate if

redirection is moved from the desktop to the server by the installation of the BlackBerry Enterprise Server.

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