Requirements1. The Storage Memory Card contains software for all the processes of the Control Box and all thecustomer data. Therefore, do not allow unauthorised access to prevent data leakage.2. Always make backups of data stored on the Storage Memory Card. For details, consult your dealer.3. To prevent illegal access from the Internet, activate a Firewall.4. To avoid unauthorised access and possible abuse of the Control Box, we strongly recommend:a. Keeping the password secret.b. Selecting a complex, random password that cannot be easily guessed.c. Changing your password regularly.5. Perform the following when sending the Control Box for repair or handing it over to a third party.a. Make a backup of data stored on the Storage Memory Card.b. Using a formatter, format the Storage Memory Card so that information cannot be retrieved fromit.6. To prevent data leakage, render the Storage Memory Card physically unusable before disposal.7. When user information is sent from the Control Box to a PC, the confidentiality of that informationbecomes the responsibility of the customer. Before disposing of the PC, ensure that data cannot beretrieved from it by formatting the hard disk and/or rendering it physically unusable.1.1.5 Before Operating the TelephonesSupported TelephonesYou can use KX-HDV series SIP phones with the Control Box.Registration for your SIP PhoneYour SIP phone must be registered with the Control Box and assigned an extension number before initialuse, through system programming. To confirm the extension number, follow the instructions for your phone.Feature NumbersTo use certain features, you need to enter specified feature numbers (and an additional parameter, ifrequired).Feature numbers cannot be changed.ExamplesThe displays and the illustrations shown as examples are from a telephone connected to the Control Box.RestrictionsSome features may be restricted at your extension depending on system programming.Icon DescriptionsThe following icons show you the feature availability, notes and action to use the features.Off-hook (One of the following).• Lift the handset.• Press the SP-PHONE button.Talk or make anannouncement.1.1.5 Before Operating the Telephones14 Operating Manual