1.1 General Features52 Feature Manual1.1.36 Consultation HoldDescriptionWhen an extension user is on a call and performs Call Transfer ( 1.1.25 Call Transfer—To Extension,1.1.26 Call Transfer—To Outside (CO) Line), Call Splitting ( 1.1.24 Call Splitting), or tries to establish aconference call ( 1.1.33 Conference, 1.1.34 Conference, Unattended), the call is automatically placed onconsultation hold. When the operation is completed or canceled, the consultation hold is released.Feature Manual References1.1.24 Call Splitting1.1.25 Call Transfer—To Extension1.1.26 Call Transfer—To Outside (CO) Line1.1.33 Conference1.1.34 Conference, Unattended1.1.37 Data Line SecurityDescriptionOnce Data Line Security is set on an extension, communication between the extension and the other partyis protected from signals such as Call Waiting, Hold Recall, and Executive Busy Override. Extensions thathave devices such as modems, fax machines, or Voice Processing Systems (VPSs) connected to them mayset this feature to maintain secure data transmission, by blocking tones or other interruptions duringcommunication.Programming Manual References[PC Programming]9.2.2 Feature settings [2-2]—Data Line SecurityFeature Manual References1.1.27 Call Waiting1.1.50 Executive Busy Override—Extension1.1.51 Executive Busy Override—Outside (CO) LineOperating Manual References1.3.33 Data Line Security1.1.38 Dial ToneDescriptionThe following dial tones inform extension users about features activated on their extensions: