2.3 Feature Number List2-4 AppendixADDITIONAL REQUIRED DIGITSNUMBERFEATUREFeature Numbers and Additional Required DigitsAbsent Message Capability set / cancelAccount Code Entry for an SLTCall Forwarding set / cancelCall Forwarding — Follow Me set / cancelCall Hold (Hold Mode 2 or 3) for an SLTCall Hold, Retrieve outside call / intercom callCall Park / Call Park RetrieveCall Pickup, DirectedCall Pickup, GroupCall Pickup Deny set / cancelCall Retrieve from TAMCall Waiting set / cancel for extensionsCall Waiting set / cancel for exchange linesConference (5-party)Data Line Security set / cancelDo Not Disturb (DND) set / cancelDoorphone Call calling / door openElectronic Extension Lockout setElectronic Extension Lockout cancelExecutive Busy Override Deny set / cancelExtension NumberExternal Feature AccessLog-In / Log-OutMessage Waiting set / cancelMessage Waiting cancel all messagesOperator CallOutward Dialling— Line Access, Automatic— Line Access, Trunk Group7549 or71715053 / 536 / 56440724*1732731227307131 / 557777733200–299673670700981–6 / 0 + #Account code1–3 + desired number / 0 + #5 / 8 + EXTN. (extension no.) + #CO (exchange line no.) / EXTN.0–9EXTN.1 / 0 + #1 / 0 + #1 / 0 + #phone no. + CONF1 / 0 + #4 / 0 + #1–40000–9999 twice + #0000–9999 + #0 / 1 + #0 / 1 + #(1 + EXTN.) / (2 + EXTN.) + #0 + #1–6*1 Dial after dialling the TAM’s extension number and hearing busy tone.