This tab provides trace options for monitoring the system's T1 trunks.
Events
Option
Description
CAS
Log the robbed-bit Channel Associated Signaling (CAS) being transmitted and received on all of the channels.
Channel
Log the events, messages and status changes on the lower level signaling handlers being used on each channel.
Dialler
Log "Dialler" events and state changes on all channels. This includes outgoing and incoming digits.
DSP
Log all significant events and digits being processed by the DSP on the T1 card.
Line
Log the events, messages and status changes on the T1 line in general, and "upper level" channel events, messages and status changes, which are independent of the lower level signaling handler being used on each channel.
Loop-back
These options are used to set loop-back operation. First select the line on which loop-back is required and then the type of loop-back. Click OK to apply the settings.
Loop-back Type
Option
Description
Line Loop-back
This loop-back type loops back the entire received signal to the far end of the line without the signal entering the system at all.
Payload Loop-back
This loop-back type allows the received signal into the line driver chip-set. The signal payload is extracted from the incoming framed signal and transmitted back to the line with new framing.
Loop-Back Off
This option disables any loop-back operation currently applied to the selected line.
Loop-back Line Selection
Loop-back Line Selection: These settings are used to select the lines to which the selected Loop-back Type are applied.
