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Development Guide
Creating connections
Network gateways
Using the BlackBerry Enterprise Server as an intranet gateway
Enterprise customers host the BlackBerry® Enterprise Server behind their corporate firewall to enable access from BlackBerry
devices to the corporate intranet. The BlackBerry® Mobile Data System component of the BlackBerry Enterprise Server includes
the BlackBerry® MDS Services, which provides an HTTP and TCP/IP proxy service to let third-party Java® applications use it as
a secure gateway for managing HTTP and TCP/IP connections to the intranet. When you use the BlackBerry Enterprise Server
as an intranet gateway, all traffic between your application and the BlackBerry Enterprise Server is automatically encrypted using
AES or triple DES encryption. Because the BlackBerry Enterprise Server resides behind the corporate firewall and provides inherent
data encryption, applications can communicate with application servers and web servers that reside on the corporate intranet.
If your application connects to the Internet rather than to the corporate intranet, you might be able to use the BlackBerry Enterprise
Server that belongs to the customer as a gateway. In this case, network requests travel behind the corporate firewall to the
BlackBerry Enterprise Server, which makes the network request to the Internet through the corporate firewall. However, enterprise
customers can set an IT policy to enforce that the BlackBerry Enterprise Server is the gateway for all wireless network traffic,
including traffic destined for the Internet.
If your application connects to the Internet, and you are targeting non-enterprise customers, you can also use either the
BlackBerry® Internet Service or the Internet gateway of the wireless server provider to manage connections.
Using the wireless service provider's Internet gateway
Java® applications for BlackBerry® devices can connect to the Internet using the Internet gateway that the wireless service
provider provides. Most wireless service providers provide their own Internet gateway that offers direct TCP/IP connectivity to
the Internet. Some operators also provide a WAP gateway that lets HTTP connections occur over the WAP protocol. Java
applications for BlackBerry devices can use either of these gateways to establish connections to the Internet. If you write your
application for BlackBerry device users who are on a specific wireless network, this approach can often yield good results. However,
if you write your application for BlackBerry device users on a variety of wireless networks, testing your application against the
different Internet gateways and achieving a consistent and reliable experience can be challenging. In these scenarios, you may
find it useful to use the BlackBerry® Internet Service, and use the wireless service provider's Internet gateway as a default
connection type if the BlackBerry Internet Service is not available.
Retrieve the wireless network name
1.
Import the following classes:
54
Creating connections
3
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