Difference between BIS and BES

BIS – (For individuals and small businesses)

The BlackBerry Internet Solution provides a wireless solution tailored to meet the needs of individual users and small and medium-sized businesses (SMB). The BlackBerry Internet Service, a component of the BlackBerry Internet Solution, allows wireless connectivity to Internet-based email and other applications. The architecture for BlackBerry Internet Service,
including Internet browsing functionality, is shown in the diagram below: BlackBerry Internet Service leverages centrally hosted wireless gateways, allowing users to access up to 10 supported email accounts and Internet browsing functionality* without the need to install and manage a BlackBerry Enterprise Server.

BES

The BlackBerry Enterprise Solution allows the wireless extension of corporate email and applications with the BlackBerry Enterprise Server™, an important component of the solution, and would be managed by the organisations own internal I.T. department. The typical architecture of the BlackBerry Enterprise Solution is shown in the diagram below: The BlackBerry Enterprise Server is installed and managed behind the corporate firewall and includes integrated support for extending corporate messaging solutions, including Microsoft Exchange, IBM Lotus Domino and Novell GroupWise. The BlackBerry Enterprise Server also acts as a wireless gateway allowing the BlackBerry Browser and custom applications on the BlackBerry device to connect to corporate applications and web servers, as well as to Internet-based web servers.