Emerson EM6120-2 User Manual page 23

To change the security code:
security
1. Press and HOLD the
code
tone and the following voice prompt, "please set security code" .
2. Use the
press the
3. Repeat step number 2 until all three digits of the security
security
code
code are set and the answering system confirms the code
with a voice prompt of the new security code.
To check the security code:
security
• Press the
code
security
code
buttons to change the number up or down, and
button to confirm.
security
code
button to check the security code
security
code
Press to check or press and HOLD
rings to security
answer code
to adjust
delete
button until the system emits a
"000"