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91BusinessPhone – Cordless DT590
Security
¿ ÜÛ For changing the code, enter the current code (Old code) and
confirm.
¿ ÜÛ Enter the digits of the new code (New Code(1)) and confirm.
¿ ÜÛ Enter the new code (New Code(2)) again and confirm.
Either the new code is accepted or “Wrong Code!” is displayed. If
“Wrong Code!” is displayed, you have entered a number that does
not match the current code.
When the new code is accepted, the phone lock is enabled.
Note the new code for future use.
Block Extension
You can block your extension in order to prevent unauthorized
external calls. You can still make internal calls and you can also
receive incoming calls.
*72# ÜÛ Press to block your extension.
Wait for the verification tone.
ÚÙ Press to finish the procedure.
Unblock Extension
#72* Press.
¿ Enter your password.
Note: To change your password see chapter“Change
Password” on page 69
# ÜÛ Press to reopen.
Wait for the verification tone.
ÚÙ Press to finish the procedure.
Your extension is open for use.