Majority of the responding candidates could neither explain what was a ringer nor state the function performed by LCD in GSM phone, but were able to state correctly the acronym for LCD.

            The expected answers are:
                        (a)        Ringer is an audio signaling device or a device that gives alert on                                                    incoming calls/messages
                        (b)        LCD means Liquid Crystal Display
                        (c)        LCD serves the purpose of a visual display of information