9To preset ringer volumeNOTE: Access to feature is based on data assignment.• Press Feature and 0. Ringer activates.• Press down or up Key. Ringer volume decreases orincreases.• Press Feature Key to stop ringing.TO ORIGINATE AN OUTSIDE CALL VIA EXTENSION LINE KEY• Lift handset or press Speaker key, receive dial tone.• Dial the Central Office access code, e.g. 0.• Dial desired telephone number.• Use handset or MIC to converse.TO ORIGINATE AN INTERNAL CALL• Lift handset or press Speaker key.• Receive dial tone.• Dial desired station number.• Use handset or MIC to converse.OUTSIDE LINE APPEARANCETo originate:• Press the OUTSIDE LINE APPEARANCE feature key.• Lift handset or press Speaker, receive Central Office or distantPBX dial tone.• Dial the destination.To Answer:• Press the LINE APPEARANCE feature key (ringing andflashing LED alert user to incoming call.)• Lift handset or press Speaker.• Speak with incoming party.