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i2021 ISDN Teleset
5.This number is your password. Write it down. You are prompted to confirm the password.
6.To begin Level 2 protection, press the MENU key now.
7.To begin Level 3 protection, press the LockAll softkey. Level 3 protects the Teleset’s entire menu system.
8.Press LockAll.
9.Press MENU to exit.
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