106IndexKkey fields, labeling ........................... 9, 10, 99key module ................................................. 10keypad dialing ............................................. 76keysassigning .................................................. 55fixed ...................................................... 9, 10incomplete save ..................................... 57labeling ..................................................... 99programmable .................................... 9, 10Llabeling key fields ............................ 9, 10, 99LAN telephony ............................................ 93leaving an advisory message ................... 68LED (light-emitting diode) ..................... 9, 10LED indications, meaning of ........ 81, 84, 85LED signals, meaning ................................ 58locking all phones ...................................... 74locking/unlocking the telephone .............. 53Mmailbox ........................................................ 19making callson-hook dialing ........................................ 26to stored destinations ........................... 39using redial .............................................. 41with the dialing aid ................................. 32making external calls ................................. 26making trunk calls ...................................... 26malfunctions ............................................. 102meaning of LED Indications ..................... 81meaning of LED indications ............... 84, 85meaning of LED signals ............................ 58messageanswering ................................................ 67deleting/displaying ................................. 67receiving .................................................. 67sending .................................................... 67microphone for speakerphone mode ..... 10monitoringsilent ......................................................... 72MULAP keys ............................................... 81MULAP trunk keys .................................... 81Nnight answer ............................................... 65notes .............................................................. 2Oopen doorwith a code .............................................. 24open listening ............................................. 15opening door ............................................... 23operating instructionsHTML format ........................................ 100ordering .................................................. 100PDF format ............................................ 100operating principle ..................................... 12operating stepsassigning to a key ................................... 60operating systems ..................................... 11optiPoint adapter ...................................... 101optiPoint key module ................................ 10overload ....................................................... 25override .................................................. 49, 72Pparking a call ............................................... 37PDF format ................................................ 100personal identification number ................ 54pickup (call) ............................................ 18, 90PIN ................................................................ 54for a telephone ....................................... 53placing a call on hold ................................. 38in a team .................................................. 82preventing and allowingautomatic camp-on .................................... 17prime line on ............................................... 26problems/contacts ................................... 103procedureassigning to a key ................................... 60Program/Service ......................................... 12programming available keys ..................... 55programming keys ..................................... 55programming your telephone .................. 50project calls ................................................. 46