General FeaturesFeatures Guide 117Executive Busy Override — Outside LineDescriptionAllows the proprietary telephone user to interrupt an existing outside call, either between twooutside parties or between an outside and an inside party, to establish a three-party conferencecall. It is possible for extension users to prevent this function from being executed by anotherextension user (Executive Busy Override Deny).Conditions• Class of Service programming determines the extension users who can perform ExecutiveBusy Override and Executive Busy Override Deny.• The pre-assigned extension users can interrupt any outside line even if access to the line isnot allowed by System Programming.• This feature does not work if the extension has set Executive Busy Override Deny or DataLine Security.• When a two-party call is changed to a three-party call and vice versa, a confirmation toneis sent to all three parties. This tone can be eliminated by System Programming.Programming Guide References• [100] Flexible Numbering• [505] Executive Busy Override• [506] Executive Busy Override Deny• [990] System Additional InformationFeatures Guide References• ConferenceUser Manual References• 4.3.43 Executive Busy Override — Outside Line [PT only]