To Originate An Outside Call; To Originate An Internal Call; Multiline Appearance - NEC DT400 User Manual

To Originate an Outside Call

... Lift handset or press Speaker key, receive dial tone.
... Dial the Central Office access code, 9.
... Dial desired telephone number.
... Use handset or MIC to start a conversation.
Display indicates:

To Originate an Internal Call

... Lift handset or press Speaker key.
... Receive dial tone.
... Dial desired station number. Display indicates digits
dialed.
... Use handset or MIC to converse.

Multiline Appearance

To Originate a Call
... Press the MULTILINE APPEARANCE feature key.
... Lift handset or press Speaker. Dial the Central Office
access code, 9.
... Dial the desired number.
To Answer a Call
... Press the MULTILINE APPEARANCE feature key
(ringing and flashing LED alert user to incoming call).
... Lift handset or press Speaker.
... Speak with incoming party.