An S appearing in the phone status letters on the display indicates that a system alarm has occurred. This happens if you are configured as a system administrator (also called a system phone user).

A corresponding alarm message appears in the phone's Status menu. This allows you to report the problem to your system maintainer.

You can clear some alarms from the phone. When that is the case, the alarm message includes a Clear option. The System Status application can clear all alarms. Note however that the alarm will reoccur if the system maintainer has not resolved the original cause.

Some of the possible alarm messages are:

Alarm Log Entry
This indicates that a system alarm has been recorded in the telephone system's alarm log. These can only be cleared using the System Status application.
Corrupt Date/Time
There is an error in the date or time being used by the system. Selecting Admin takes you to the system administration menu where see the system's date and time settings.
Expansion Failure
There is a problem with one of the external expansion modules attached to the telephone system.
Memory Card Failure
There is a problem with one of the memory cards used by the telephone system. Selecting Admin takes you to the system administration menu where you can check the status of the memory cards.
Licence Key Failure
There is a problem with the memory card used to license features and applications.
System Boot Error
The telephone system encountered an error while restarting.
Voicemail Failure
The voicemail system is not available.
Voicemail Almost Full
The voicemail system is nearly out of storage space for any more messages, prompts and recordings.
Voicemail Full
The voicemail system cannot store any more messages, prompts and recordings.