Do Not Disturb 
Do Not Disturb allows you to prevent incoming calls from ringing at your phone. Only callers who have your Personal Identification Number (PIN) can over ride the Do Not Disturb feature and ring your telephone. When Do Not Disturb is activated, callers will receive a busy signal or an announcement. At this time, callers who know your PIN may dial it and ring your telephone.The selected PIN remains in storage unless you change or delete it. Deactivation of Do Not Disturb will not erase your PIN.
To Activate Do Not Disturb:
1. Dial * 7 8, then listen for three beeps.
2. Hang up.
To Cancel Do Not Disturb:
1. Dial * 7 9, then listen for three beeps.
2. Hang up.
To Set or Change Your PIN:
1. Dial # 8 7, then listen for three beeps and a steady dial tone.
2. Enter PIN (maximum of 7 digits).
3. Depress #, then listen for three beeps.
4. Hang up.