3-46 Telephone FeaturesC 3.2 Telephone FeaturesConditions• The default setting for Call Waiting is “disabled”.• When Call Waiting is enabled, a Call Waiting tone is sent to the user under thefollowing conditions.1) When an outside call is received,2) When another extension executes the “Busy Station Signaling (BSS)” feature, or3) When a doorphone call is received.• Setting “Data Line Security” temporarily cancels this feature.• You can change the desired Call Waiting tone for an incoming outside call andintercom call (Tone 1 or Tone 2). As for a doorphone call, Tone 1 is used as a CallWaiting tone (not changeable).• If a Call Waiting tone is heard and the CO or INTERCOM indicator does not flash, thistone indicates Call Waiting from your telephone company. In this case, see “CallWaiting from a Central Office” or “External Feature Access”.• If “Hold-2” or “Hold-3” is assigned in System Programming, you must dial “20” afterflashing the hookswitch.• You cannot transfer the new call while holding the current call. If you want to do so,first park the original call using the Call Park feature; then hang up; then take the newcall.Programming References• Station Programming (Section 2)Call Waiting Tone Type Assignment• System Programming — Installation Manual[104] Hold Mode SelectionFeature ReferencesBusy Station Signaling (BSS)Call ParkCall Waiting from a Central OfficeData Line SecurityExternal Feature AccessSLTSLTPTPT