If the problem is not solved, follow the troubleshooting procedure described in‘Phone registration failure’ of ‘Annex’, and if the problem is still not solved,contact the system administrator, reseller, or the service center.y For the initial screen, one display can be selected from 4 displays.47Initial ScreenRefer to ‘7. Phone Settings’ section in ‘Application Menus’ of this guide forselecting the initial screen.Encryption keyYou can set the encryption key in the systemwhich should be entered when you register thephone. You can register the phone to thesystem only by additionally setting or clearingthe encryption key without having to enter thesystem information again.[MENU] X 8. System X [OK] X 2. EncryptonKey X [OK] X [1. Disable/2.WEP/3. WPA_PSK/4. WPA2_PSK] (SelectEncryption key) X [OK] X [1.ASCII Mode/ 2. HEX mode] or [1. AES Mode/2.TKIP mode] (Select Encryption mode) X [OK] XEnter encryption key X [OK]Consult the system administrator and enter the valueset on the system.