two things in the security of communication

1. The emergency number
The emergency number for mobile phones is 112. If you're in the area
who does not receive the signal and need to call the HP help, please
press 112, and HP will explore the existing network to connect a number
emergency for you, and interesting, the number 112 can be pressed even keypad
dilock. Try ..

2. nokia battery reserve

If your battery is low, when you're waiting for phone calls
important, and your phone is made olehNOKIA, silahkantekan * 3370 #, then
your phone will automatically restart danbaterai increased 50%.
Battery back-up this time you will fill your HP mencharge.