# DSP Status

The DSP Status dialog box provides information on DSP (Digital Signal Processing) status and alarm conditions.

## Navigation

Right-click the Voice Gateway Module, then select DSP > DSP Status.

The following information appears:

> DSP Operational State (cdspOperState)

> Last Alarm Time (cdspLastAlarmTime)

> Last Alarm State (cdspLastAlarmCause)

> Reason for Last Alarm (cdspLastAlarmCauseText)

> Total Alarms (cdspAlarms)

> Total Channels (cdspTotalChannels)

> In Use Channels (cdspInUseChannels)

> Active Channels (cdspActiveChannels)

### DSP Operational State (cdspOperState)

The operational state of the DSP.

The following tale gives details:

State | Description
normal | DSP operates normally.
shutdown | DSP is shut down because of a fatal error.

### Last Alarm Time (cdspLastAlarmTime)

The value of sysUpTime when the last DSP alarm occurred. The value of cdspLastAlarmTime is zero if the value of cdspLastAlarmCause is noAlarm.

### Last Alarm State (cdspLastAlarmCause)

The current or the last alarm state of the DSP.

The following table gives details:

State | Description
other | None of the following.
noAlarm | Alarm condition not detected.
dspFatalError | DSP fatal error is detected.
dspMemoryError | DSP memory error is detected.
dspBufferError | DSP buffer error is detected.
dspDownloadError | Failed to download software to DSP.

### Reason for Last Alarm (cdspLastAlarmCauseText)

The reason for failure of the current or the last DSP Alarm. Displayed only if the management station is unable to decode the value of cdspLastAlarmCause.

### Total Alarms (cdspAlarms)

The accumulated number of DSP alarms.

### Total Channels (cdspTotalChannels)

The total number of channels in the DSP. Zero means that channelized DSP mode is turned off.

### In Use Channels (cdspInUseChannels)

The number of channels reserved for serving calls. The value increasedincreases when the DSP channel is reserved for call setup and decreases after the call is disconnected.

### Active Channels (cdspActiveChannels)

The number of channels the active calls use to process the media stream. The value is increased after the reserved DSP channel connects the call and decreased after the call is disconnected.