1.5.4.8 Host PBX Access Code (Access Code to the Telephone Company from a HostPBX) ............................................................................................................................951.5.4.9 Special Carrier Access Code .......................................................................................971.5.5 Seizing a Line Features ..................................................................................................981.5.5.1 Seizing a Line Features—SUMMARY .........................................................................981.5.5.2 Line Preference—Outgoing .........................................................................................991.5.5.3 Trunk Access .............................................................................................................1001.6 Memory Dialling Features ............................................................................................1021.6.1 Memory Dialling Features ............................................................................................1021.6.1.1 Memory Dialling Features—SUMMARY ....................................................................1021.6.1.2 One-touch Dialling .....................................................................................................1041.6.1.3 KX-T7710 One-touch Dialling ....................................................................................1051.6.1.4 Last Number Redial ...................................................................................................1061.6.1.5 Speed Dialling—Personal/System .............................................................................1081.6.1.6 Quick Dialling .............................................................................................................1101.6.1.7 Hot Line .....................................................................................................................1111.7 Primary Directory Number (PDN)/Secondary Directory Number (SDN)Features .........................................................................................................................1121.7.1 Primary Directory Number (PDN)/Secondary Directory Number (SDN)Extension ......................................................................................................................1121.8 Busy Line/Busy Party Features ...................................................................................1181.8.1 Automatic Callback Busy (Camp-on) ...........................................................................1181.8.2 Executive Busy Override ..............................................................................................1191.8.3 Call Monitor ..................................................................................................................1201.8.4 Second Call Notification to Busy Extension .................................................................1221.8.4.1 Second Call Notification to Busy Extension—SUMMARY .........................................1221.8.4.2 Call Waiting Tone ......................................................................................................1241.8.4.3 Off-hook Call Announcement (OHCA) .......................................................................1251.8.4.4 Whisper OHCA ..........................................................................................................1261.9 Toll Restriction (TRS)/Call Barring (Barring) Features ..............................................1271.9.1 Toll Restriction (TRS)/Call Barring (Barring) ................................................................1271.9.2 Budget Management ....................................................................................................1351.9.3 Extension Dial Lock ......................................................................................................1361.9.4 Dial Tone Transfer ........................................................................................................1371.9.5 Walking COS ................................................................................................................1381.9.6 Verification Code Entry .................................................................................................1401.10 Automatic Route Selection (ARS) Features ...............................................................1421.10.1 Automatic Route Selection (ARS) ................................................................................1421.11 Conversation Features .................................................................................................1481.11.1 Hands-free Operation ...................................................................................................1481.11.2 Off-hook Monitor ...........................................................................................................1491.11.3 Mute .............................................................................................................................1501.11.4 Headset Operation .......................................................................................................1511.11.5 Data Line Security ........................................................................................................1521.11.6 Flash/Recall/Terminate ................................................................................................1531.11.7 External Feature Access (EFA) ....................................................................................1551.11.8 Trunk Call Limitation .....................................................................................................1571.11.9 Parallelled Telephone ...................................................................................................1591.11.10 Calling Party Control (CPC) Signal Detection ..............................................................1621.12 Transferring Features ...................................................................................................1631.12.1 Call Transfer .................................................................................................................1631.13 Holding Features ...........................................................................................................1671.13.1 Call Hold .......................................................................................................................1671.13.2 Call Park .......................................................................................................................1701.13.3 Call Splitting .................................................................................................................172Feature Guide 9Table of Contents