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ESN Electronic Serial Number. Used to identify your phone.
fax call A call placed or received where phone functions as a 
data/fax modem, connected to your PC via the DLR-3P 
cable or Infrared (IR).
home system The wireless system on which you are a subscriber.
IMEI International Mobile Equipment Identifier. Used by 
wireless providers to identify your phone on the 
wireless network.
Internet An electronic communications network that connects 
computer networks and organizational computer 
facilities around the world.
IrDA Infrared Data Association. IrDA is a non-profit trade 
association with a membership that ensures 
interoperability between devices of all types.
keypad tones The sounds you hear when a key on your phones keypad 
is pressed.
message alert 
tone
The sounds you hear upon receipt of a text or system 
message by your phone.
navigate To move from one internet site to another, or from one 
phone menu to another.
number keys The numbered keys on your phone’s keypad.
power key The button on the front of the phone that allows you to 
turn the phone on or off. It can also be used to recall 
and switch between profiles.
Term Definition