Calling Party Privacy Override Page 503 of 1814International ISDN PRI Feature description and administrationThe following example illustrates Calling Party Privacy Overridefunctionality:1 Set A, a Meridian 1 proprietary set with Class of Service set to CLBA,goes off-hook.2 Set A dials the Calling Party Privacy Override Flexible Feature Code,defined in Overlay 57. Calling Party Privacy Override is initiated.3 Set A dials the destination number for Set B.4 The call rings on Set B.5 The calling party information of Set A is presented on the display screenof Set B.Outgoing callsFor an outgoing non-ISDN trunk call, the Privacy Override Indicator isdefined on the outgoing trunk route. The CPPO Flexible Feature Code isoutpulsed to the far end provided that the outgoing trunk route provisionsCPPO. If CPPO is not provisioned on the trunk route, then the call does notcarry the Privacy Override Indicator.For an outgoing ISDN call from one Meridian 1 to another, the PrivacyOverride Indicator is represented when the Presentation Indicator field is setto “Presentation Allowed” in the Calling Party Number InformationElement (IE) and the Call Party Name Display (CPND) Indicator field is setto “Presentation Allowed” in the Display IE.For an outgoing ISDN call to the Central Office, the Privacy OverrideIndicator is represented when the Presentation Indicator field is set to“Presentation Allowed” in the Calling Party Number IE and when the CPNDinformation is included in the Display IE.Incoming callsAn incoming ISDN call is recognized as a CPPO call (that is, it carries thePrivacy Override Indicator) if the Presentation Indicator field is set to“Presentation Allowed” in the Calling Party Number IE and if the CPNDIndicator is set to “Presentation Allowed” in the Display IE (if it exists).. Call Party Name Display (CPND) information is optional for ISDN calls.
