User Guide

10 Preface iPhone in the Enterprise
Microsoft Exchange Autodiscovery
The Autodiscover service of Exchange Server 2007 is supported. When you
manually configure a device, Autodiscover uses your email address and password
to automatically determine the correct Exchange server information. For information
about enabling the Autodiscover service, see http://technet.microsoft.com/en-us/
library/cc539114.aspx.
Microsoft Exchange Global Address List
iPhone, iPod touch, and iPad retrieve contact information from your company’s
Exchange server corporate directory. You can access the directory when searching
in Contacts, and it’s automatically accessed for completing email addresses as you
enter them.
Additional Supported Exchange ActiveSync Features
In addition to the features and capabilities already described, iPhone OS supports:
 Creating calendar invitations. With Microsoft Exchange 2007, you can also view the
status of replies to your invitations.
 Setting Free, Busy, Tentative, or Out of Office status for your calendar events.
 Searching mail messages on the server. Requires Microsoft Exchange 2007.
 Exchange ActiveSync client certificate-based authentication.
Unsupported Exchange ActiveSync Features
Not all Exchange features are supported, including, for example:
 Folder management
 Opening links in email to documents stored on SharePoint servers
 Task synchronization
 Setting an “out of office” autoreply message
 Flagging messages for follow-up
VPN
iPhone OS works with VPN servers that support the following protocols and
authentication methods:
 L2TP/IPSec with user authentication by MS-CHAPV2 Password, RSA SecurID and
CryptoCard, and machine authentication by shared secret.
 PPTP with user authentication by MS-CHAPV2 Password, RSA SecurID, and
CryptoCard.
 Cisco IPSec with user authentication by Password, RSA SecurID, or CryptoCard,
and machine authentication by shared secret and certificates. See Appendix A for
compatible Cisco VPN servers and recommendations about configurations.