Unitech PA950 - Manual (Page 43)

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Manage Wireless Synchronization Costs
To manage the cost of synchronizing wirelessly from your device, you
must balance the following considerations:
Battery life
Network connection or data transfer costs
How up-to-date you want your information to be
Maximize battery life
Each time your device synchronizes, some of the stored battery power is
used. Setting up ActiveSync to synchronize frequently on a schedule or
automatically when items arrive uses more battery power than
synchronizing manually. To maximize battery life, schedule
synchronization infrequently or synchronize manually.
Minimize connection and data costs
Each time your device synchronizes wirelessly, ActiveSync connects to
your service provider network. Depending on your rate plan, each
connection may have costs associated with it. Some service providers
also charge by the amount of data that you transfer across their network.
To minimize the number of times you connect to synchronize, increase
the time between scheduled synchronizations, or set the device to
synchronize manually. To get the most data each time you synchronize,
schedule synchronization more frequently for times when, for example,
you receive more mail.