NEC XN120 Feature Manual page 106

Features
n Operation
To place an Intercom call:
1. At system phone, press a SPK key.
OR
At single line telephone, lift handset.
2. Dial extension number (or 0 for your operator).
Your call may voice-announce or ring the called extension. Dial 1 to change the way your call alerts the called
extension. If the extension you call is busy or doesn't answer, you can dial another extension without hanging up.
To answer an Intercom call:
1. If you hear two beeps, speak toward phone.
Your telephone picks up your voice.
OR
If your telephone rings, lift handset.
To check your extension's data (System Phone Only):
1. Press CHECK.
2. Press CALL.
You display shows your telephone's extension number, port number and extension/Department Group.
3. Press CLEAR to return the normal time/date display.
To change how Intercom calls ring your extension:
1. Press the CALL key.
2. Dial 823 to have calls ring your extension.
OR
3. Dial 821 to have calls voice announce to your extension.
Features Manual
104