Apple iphone 3g 16gb Guida Utente

Pagina di 152
Chapter 1 
Getting Started 
13 
Push Accounts 
MobileMe, Microsoft Exchange, and Yahoo! Mail are known as “push” accounts. When 
new information is available, such as the arrival of an email message, the information 
is automatically delivered (pushed) to your computer or to iPhone. (In contrast,“fetch” 
services require your email software to periodically check with your service provider to 
see if new messages have arrived, and then request them to be delivered.) MobileMe 
and Exchange also sync your contacts, calendars, and bookmarks (MobileMe only) 
in the same way. For example, if you add a contact to the address book on your 
computer, the new contact is automatically pushed to iPhone as well as to any other 
computer or device configured with the service. 
Synced information is transferred automatically over your wireless connection; you 
don’t need to connect iPhone to your computer to sync. If you don’t have a cellular 
connection, iPhone can receive pushed data over a Wi-Fi connection when iPhone is 
awake (the screen is on, or iPhone is connected to your computer or a power adapter). 
Installing Configuration Profiles 
If you’re in an enterprise environment, you may be able to set up accounts and 
other items on iPhone by installing a configuration profile. Configuration profiles 
provide a way for system administrators to quickly set up your iPhone to work with 
the information systems at your company, school, or organization. For example, a 
configuration profile might set up your iPhone to access the Microsoft Exchange 
servers at work, enabling iPhone to access your Exchange email, calendars, and 
contacts. 
Configuration profiles can configure multiple settings on iPhone all at once. For 
example, a configuration profile can set up your Microsoft Exchange account, VPN 
account, and certificates for secure access to your company’s network and information. 
A configuration profile may turn on the Passcode Lock, requiring you to create and 
enter a passcode for using iPhone. 
Your system administrator may distribute configuration profiles by email or by putting 
them on a secure webpage.