2.5.4.6 Trunk Busy Out ............................................................................................................93
2.5.4.7
Pause Insertion ............................................................................................................94
2.5.4.8 Host PBX Access Code (Access Code to the Telephone Company from a Host
PBX) ............................................................................................................................95
2.5.4.9 Special Carrier Access Code .......................................................................................97
2.5.5 Seizing a Line Features ..................................................................................................98
2.5.5.1 Seizing a Line Features—SUMMARY .........................................................................98
2.5.5.2 Line Preference—Outgoing .........................................................................................99
2.5.5.3 Trunk Access .............................................................................................................100
2.6 Memory Dialling Features ............................................................................................102
2.6.1 Memory Dialling Features—SUMMARY ......................................................................102
2.6.2 One-touch Dialling ........................................................................................................104
2.6.3 Last Number Redial ......................................................................................................105
2.6.4 Speed Dialling—Personal/System ...............................................................................107
2.6.5 Quick Dialling ...............................................................................................................109
2.6.6 Hot Line ........................................................................................................................110
2.7 Toll Restriction (TRS)/Call Barring (Barring) Features ..............................................111
2.7.1 Toll Restriction (TRS)/Call Barring (Barring) ................................................................111
2.7.2 Budget Management ....................................................................................................118
2.7.3 Extension Dial Lock ......................................................................................................119
2.7.4 Dial Tone Transfer ........................................................................................................120
2.7.5 Walking COS ................................................................................................................121
2.7.6 Verification Code Entry .................................................................................................123
2.8 Automatic Route Selection (ARS) Features ...............................................................125
2.8.1 Automatic Route Selection (ARS) ................................................................................125
2.9 Primary Directory Number (PDN)/Secondary Directory Number (SDN)
Features .........................................................................................................................131
2.9.1 Primary Directory Number (PDN)/Secondary Directory Number (SDN)
Extension ......................................................................................................................131
2.10 Busy Line/Busy Party Features ...................................................................................137
2.10.1 Automatic Callback Busy (Camp-on) ...........................................................................137
2.10.2 Executive Busy Override ..............................................................................................138
2.10.3 Call Monitor ..................................................................................................................139
2.10.4 Second Call Notification to Busy Extension .................................................................141
2.10.4.1 Second Call Notification to Busy Extension—SUMMARY .........................................141
2.10.4.2 Call Waiting Tone ......................................................................................................143
2.10.4.3 Whisper OHCA ..........................................................................................................144
2.11 Conversation Features .................................................................................................145
2.11.1 Hands-free Operation ...................................................................................................145
2.11.2 Off-hook Monitor ...........................................................................................................146
2.11.3 Mute .............................................................................................................................147
2.11.4 Headset Operation .......................................................................................................148
2.11.5 Data Line Security ........................................................................................................149
2.11.6 Flash/Recall/Terminate ................................................................................................150
2.11.7 External Feature Access (EFA) ....................................................................................151
2.11.8 Trunk Call Limitation .....................................................................................................152
2.11.9 Calling Party Control (CPC) Signal Detection ..............................................................154
2.12 Transferring Features ...................................................................................................155
2.12.1 Call Transfer .................................................................................................................155
2.13 Holding Features ...........................................................................................................159
2.13.1 Call Hold .......................................................................................................................159
2.13.2 Call Park .......................................................................................................................161
2.13.3 Call Splitting .................................................................................................................163
2.13.4 Music on Hold ...............................................................................................................164
2.14 Conference Features ....................................................................................................166
8 Feature Guide
Table of Contents