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Chapter
1
1.14
Popup windows 
It uses the pop-up notes to inform the user the current activities of the phone, 
network, or mobile service without requiring any user action, with exception of 
a user response note. Notes typically disappear automatically after 2 seconds 
timeout period except waiting notes, progressing notes, and confirmation 
notes.
There are several types of popup window:
Error Notes:
Inform the user something is wrong.
Waiting Notes:
Inform the user to wait until an operation is completed. User is able to 
cancel the operation by pressing 
Red key
 
. The waiting note should 
be displayed if the processing time is more than 2 seconds.
Warning Notes:
Inform the user about an error event, or a situation that may cause harm 
to the user, for example, “
Call failed
”, “
Battery low
”.
Information Notes:
Inform the user about the state of the phone, network, or application, e.g., 
Call timer: x
”, “
Call cost: x
”.
Confirmation Notes:
Notify the user of successful actions if there is no other indication about 
the accomplished operation, e.g., “
Keypad is unlocked
”.
Permanent Notes:
They cannot be interrupted by the user with key presses. They stay on the 
display until dismissed by the phone, e.g., “
Invalid card
”.
Confirm Queries:
A Confirm Query is used when the UI requires the user’s confirmation for 
proceeding with an operation. It forces the user to choose between 
accepting and declining an operation.
Progressing:
The progress control shows the user about the progress of the operation, 
it provides an option for the user to interrupt the operation. It can be used 
for provisioning and downloading.