You can use the iPhone 3G to access your business email, calendar and contacts using Microsoft Exchange ActiveSync*. All your emails, calendar invites and contacts are sent directly to your iPhone 3G with no need to log on to an email account each time.

If you want to set up your e-mail and calendar using Microsoft Exchange ActiveSync, you'll need to ensure that you have the following minimum system specifications:

• Microsoft® Windows® 2000 Server with Service Pack 4 (SP4) or Microsoft® Windows

• Server™ 2003 with Service Pack 1 (SP1) (recommended)

• Microsoft® Exchange Server 2003 SP2 (includes Exchange ActiveSync) or 2007

• Microsoft® Exchange ActiveSync® Mobile Administration Web tool

• Microsoft Windows Mobile 5.0-based devices that have the Messaging and Security Feature Pack

• Active Directory® directory service

• Internet Information Services (IIS) 6.0

Then to set up your e-mail follow these simple steps.

• Step 1 - Upgrade Front-End Server to Exchange Server 2003 SP2

• Step 2 - Update All Servers with Security Patches

• Step 3 - Protect Communications between the Mobile Devices and your Exchange Server

• Step 4 - Protect Communications between the Exchange Server and Other Servers

• Step 5 - Install and Configure an ISA Server 2004 Environment or Other Firewall

• Step 6 - Configure Mobile Device Access on the Exchange server

• Step 7 - Install the Exchange ActiveSync Mobile Administration Web Tool

• Step 8 - Manage and Configure iPhones

If you don't want to use Microsoft Exchange Activesync, your iPhone 3G will support most industry standard IMAP or POP mail systems.

More information for setting up your email from O2 and Apple

*Subject to your company's IT infrastructure, permissions & policies.