Administrator’s Guide for SIP-T2xP and SIP-T19P IP Phones502. In the desired DSS key field, select Keypad Lock from the pull-down list of Type.3. Click Confirm to accept the change.To configure the type of phone lock via phone user interface:1. Press Menu->Settings->Advanced Settings (password: admin) ->PhoneSettings->Keypad Lock.2. Press or , or the Switch soft key to select the desired type from the KeypadLock field.3. Press the Save soft key to accept the change.To change the unlock PIN via phone user interface:1. Press Menu->Settings->Basic Settings->Phone Unlock PIN.2. Enter the current unlock PIN in the Current PIN field.3. Enter the new unlock PIN in the New PIN field.4. Enter the new unlock PIN again in the Confirm PIN field.5. Press the Save soft key to accept the change.To configure a keypad lock key via phone user interface:1. Press Menu->Features->DSS Keys->Memory Keys (or Line Keys).2. Select the desired DSS key.3. Press or , or the Switch soft key to select Keypad Lock from the Type field.4. Press the Save soft key to accept the change.IP phones maintain a local clock and calendar. Time and date are displayed on the idlescreen of IP phones. Time and date are synced automatically from the NTP server bydefault. The NTP server can be obtained by DHCP or configured manually. If IP phonescannot obtain the time and date from the NTP server, you need to manually configure