c 3. FeaturesConferenceDescription The system supports three-party conference calls, including outsideor inside parties. During a two-party conversation, the extensionuser can add a third party to their conversation, thereby establishinga conference.Conditions l Possible conference combinations are: l-inside and 2-outside; 2-insideand l-outside; and 3-inside.l Up to six conference calls are allowed simultaneously.l A three-party call is also established by Executive Busy Override orPrivacy Release.l When a two-party call is changed to a three-party call or vice versa, aconfirmation tone is sent to all three parties. Eliminating the tone isprogrammable.l The third party must have a CO button which is common to the outsideline used by the original parties.Programming ReferencesSection 4, System Programming[005] Flexible CO Button Assignment[990] System Additional Information, Field (13)Station Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .User ManualFlexible CO Button Assignment - Conference (CONF) ButtonFeature References Section 3, FeaturesConference, UnattendedOperation References DPT Features, Standard Telephone Features-User Manual Conference3-50 Features