The top lines of the display can include the following icons:
Do Not Disturb – This icon indicates that you have do not disturb enabled.
Forward Unconditional – This icon indicates that you have forward unconditional enabled.
Ringer Quiet – This icon indicates that the ringer volume has been set to zero.
Volume Zero – This icon indicates that the call volume (handset, speaker or headset) is set to zero.
High Definition Audio – The phone is using a high-definition audio connection.
Wi-Fi Connection (J159/J179/J189) – This icon is shown if the phone is connected to the network using Wi-Fi. The number of bars indicates the signal strength.
No Connection – This icon indicates a loss of Wi-Fi signal or incorrect password.
Bluetooth (J159/J179/J189) – This icon is shown if the phone supports Bluetooth headset connection. See Using Bluetooth Headsets.
Headset Connected – A dot within the icon indicates that the Bluetooth headset is connected.
Connection Failure – This icon indicates a connection issue.
If the phone has lost its connection to the telephone system, then if configured by your maintainer, after a few minutes it use a alternate system. If that is successful, an R (Resilience) is shown in the display.
Missed Calls – This icon indicates that you have had missed calls. The number next to the icon indicates the number of different callers. Pressing the button opens your call log at the missed calls display. See Using the Call Log.