4Answering a Call 34Answering a Second Call 34Making Calls 34Making Internal Calls 34Redialing a Call 35Making External Calls 35Making a Call to a Remote Office 35Using Unique Extensions 35Class of Service Override 36Terminating Calls 37Using the Telephone Display Panel 37Controlling the Volume 39Using the Hands Free Feature 40Using a Headset 40Returning to the Headset After a Long Delay 41Putting a Call on Hold 41Music on Hold 41Dialing a New Call While on a Call 42Answering a New Call While on a Call 42Transferring a Call 42Unattended Transfer 42Attended Transfer 43Serial Transfer 43Mapped Button Method 43Serial Transfer Feature Code Method 44Muting Calls 44Mute Ringer 44Activating Do Not Disturb 45Activating Malicious Call Trace 465 FEATURE C ODESFeature Code Overview 48Using Feature Codes 48Feature Codes 496 STANDARD FEATURESViewing the Call Logs 56