OPERATING INSTRUCTIONSMCUK000601C8 Section 3 Issue 1Service Manual – 5 – Revision 03 OPERATING INSTRUCTIONS3.1. GeneralThis section provides a brief guide to the operation and facilities available on the GD52, GD92 and GD92C telephone handsets.Refer to the Operating Instructions supplied with the telephones for full operational information.3.2. LCD DisplayThe telephone unit has a graphical chip on glass liquid crystal display in conjunction with the following icons:Figure 3.1: LCD DisplayFollowing some operations, the display will clear automatically after three seconds or after pressing any key except .Indicates received signal strength: strong signal area; weak signal area.Indicates that it is possible to make an emergency call.MenuNumberThe number of the feature indicated by the pointer. To access a feature enter the menu number on the keypad.Displays the battery charge level: Battery is at full charge; Battery requiresl charging; The batteryicon flashes during charging. During car mount use, when the battery is fully charged, the icon will not light.Menu Icon Displays a small icon related to the current status of the telephone:telephone is roaming on a non-home network.using the “Call Divert” feature or the telephone has Call-Divert set;shows that vibration alert is switched on;shows that the telephone is in silent mode - no tones;flashes to indicate that there are unread text (SMS) messages. Lit when SMS area is full;indicates the telephone is locked;shows that the normal character set has been selected;shows that the Greek character set has been selected;shows that the Extended character set has been selected;shows that numbers have been selected for text entry.Indicates that the navigation key ( ) can be pressed. Each arrow will light individually to indicate which direction is valid.Option Area Pressing the select key ( ) will select the option displayed in the option area of the display.