The SaveEntry method saves the specified entry to the
current phonebook, based on the current control properties. If the
entry does not exist, it will be created. If the entry does exist,
it will be overwritten. Note that unlike the CreateEntry
method, this method does not display any user-interface
dialogs.
The optional EntryName argument specifies the name of
phonebook entry. If this argument is not provided, the current
value of the PhoneEntry property is used.