Synchronization allows you to save your calendar and contacts data on a remote
Internet server (network service) or on a compatible PC. If you have saved data on
the remote Internet server, you can synchronize your phone by starting the
synchronization from your phone. You can also synchronize the data in your
phone contacts, calendar, and notes to correspond to the data of your compatible
PC by starting the synchronization from your PC.
The contact data on your SIM card will not be synchronized.