User Guide for the SIP-T23P/T23G IP PhoneviiiVolume ............................................................................................................................. 27Ring Tones ........................................................................................................................ 27Contact Management ....................................................................................................... 29Directory........................................................................................................................... 29Local Directory ................................................................................................................ 31Blacklist ............................................................................................................................ 41Remote Phone Book ........................................................................................................ 43Call History Management ................................................................................................ 45System Customizations ...................................................................................................... 47Logo Customization ........................................................................................................ 47Headset Use .................................................................................................................... 48DSS Keys .......................................................................................................................... 50Account Management ................................................................................................... 59Dial Plan ........................................................................................................................... 60Emergency Number........................................................................................................ 66Live Dialpad .................................................................................................................... 67Hotline .............................................................................................................................. 68Basic Call Features ................................................................. 69Placing Calls ....................................................................................................................... 70Answering Calls ................................................................................................................. 72Ending Calls ........................................................................................................................ 73Redialing Numbers ............................................................................................................ 73Recent Call In Dialing ........................................................................................................ 74Auto Answer ....................................................................................................................... 75Auto Redial.......................................................................................................................... 75Call Completion ................................................................................................................. 77ReCall .................................................................................................................................. 78Call Mute ............................................................................................................................. 78Call Hold/Resume ............................................................................................................... 79Do Not Disturb (DND) ........................................................................................................ 80Call Forward ....................................................................................................................... 83Call Transfer ........................................................................................................................ 89Call Waiting ........................................................................................................................ 91Conference ......................................................................................................................... 91Local Conference ............................................................................................................ 91Network Conference ...................................................................................................... 92Call Park .............................................................................................................................. 94Call Pickup .......................................................................................................................... 95Anonymous Call ................................................................................................................. 99Anonymous Call Rejection .............................................................................................. 100Advanced Phone Features ....................................................101