Setting system telco features 487Programming Operations GuideProgramming note: Ensure that users who have access to this feature have telephones with validOLI numbers. Refer to “Assigning line access” on page 406.Configuring ONN blocking service codesFollow these steps to configure an ONN setting:1 Click on the keys beside Services, Telephony services, and Telco features.2 Click on ONN blocking.Figure 167 ONN blocking parameters3 The following table explains the possible choices for ONN blocking.Note: When ONN is active, set and set/line restrictions are ignored. The CO call back feature isalso disabled until the feature is cancelled.Table 104 ONN blocking settingsField Values DescriptionTone F78(0 to 9, *, #) For analog trunks, enter a digit or character to determine what codethe user will enter to activate this service.Pulse F78(0 to 9, *, #) For digital trunks, except BRI, enter a digit or character to determinewhat code the user will enter to activate this service.BRI F78(0 to 9, *, #) For BRI trunks, enter a digit or character to determine what code theuser will enter to activate this service.