EXFO FTB-800 Series for FTB-1 - Manual (Page 156)

Test Setup - Test Configurator, Timer, and System
146 FTB-700G/800 Series
ISDN PRI - Call Management
Call Establishment/Termination Pass/Fail Verdict

Call Establishment/Termination Pass/Fail Verdict check box when
selected (cleared by default) enables call establishment and
termination pass/fail verdict for each channel and globally for the test.
No verdict is provided on the D-Channel.
A pass verdict indicates that there was no call processing error during
call establishment or call termination.
A fail verdict indicates that one of the following events occurs.

Call Establishment: An incoming or outgoing call is unexpectedly
cleared before it reaches the connected state at the exception of
rejected incoming calls.

Call Termination: A connected call is unexpectedly cleared.
The global pass/fail verdict is reported as fail when any channel has a
fail verdict or when a LOS, LOF, or AIS error occurs.
Call Control
The channel buttons allow the selection of a channel to see its information
or to initiate/terminate calls. The selected channel has its button
highlighted with a blue border. Each channel button presents the following
information.
Information
(location on the button)
Description
Channel number
(Top-left corner)
Indicates the channel’s number. There are 24
channels for DS1 and 31 for E1.
Pattern sync.
(Top-right corner)
Available with data call. The pattern sync icon
indicates if the data call pattern is properly
synchronized (green icon) or not (red icon).
Call State or D-Channel
(Bottom-centered)
Indicates either the call state or D-Ch for the
channel configured as D-Channel.