USER GUIDE16 1424-EN/LZT 103 088 Uen H 2014-04-033.1 Functions and AccessoriesThe DT690 and DT692 functions are listed in table 1 on page 16, and itsaccessories are listed in table 2 on page 17.Table 1 Functions4 Soft keysCan be pre-programmed or used with the GUI.In idle mode, the middle and the right softkey can be used forspecific functions defined by the user of the handset.5 Off-hook keyUsed to connect calls, and as a shortcut to the call list.6 Voice mail accessUsed to listen to voice mail messages7 Key lock and upper and lower caseA combined key lock and shift key for upper and lower case8 SpaceUsed to add space between text9 Mute keyUsed to switch audio on and off in idle mode, to silence the ringsignal, and to switch the microphone off and on during a call10 Navigation keyUsed to navigate left, right, up, and down, and to confirm (themiddle key) a selection. It is also possible to program thenavigation keys (except the middle key) for shortcuts.11 On-hook key and power on and offA combined key used to end a call, to return to idle mode, and toswitch the phone on and off with a long press12 DisplayThe display is 128 pixels wide and 160 pixels high. The displayhas multiple colors and backlighting13 Headset connectorThe headset connector is used to connect a headset. Theheadset connector cover protects the connector against dust14 Indication lampIndicates incoming calls and messages, low battery, andcharging statusLocal phonebook (250 entries)Central phonebook *Company phonebook (1,000 entries) **