18
Tele
Corder
# TCwL-B4, V2.43, Revision 4, USA
5.1.11
Hardware Information:
From
this
sub-button
you
will
gain
information
about the
Tele
Corder
including version number, capacity, media’s usage, recorded call items, deleted call items, etc.
5.1.12 Date/Time Setting:
From
this
sub-button
you
can
read
and
set
the
real
time
clock
in
the
recorder.
5.1.13 Set Channels to VAR Mode Instead of Voltage Sensing Mode used for Recording from
Phone Lines:
Each
channel
(Port)
in
the
recorder
can
be
set
to
start
and stop recording using either audio
activation (VAR) or voltage sensing. Channels showing a check mark in the boxes labeled
Port 1
,
Port 2
,
Port 3
, or
Port 4
, are set for VAR recording. Channels with no checkmark indicate they are set for phone
line recording. For any channel you want to start/stop recording using the phone line voltage sensing mode,
click on the box for that channel to remove the check mark, then click the
Write Hardware
button to
confirm any changes.
5.1.14 VAR
Voltage
Threshold:
Set
the
threshold
level
to
match the
audio
level
on
your
audio
source.
L0: Extra Sensitive, suitable for weak audio sources with low background noise level: (for
example, with weak earphone or line-out recording).
L1: High Sensitivity, suitable for normal line level audio sources with low background noise
levels: (normal phone handset earpiece audio or weak speaker of radio).
L2: Mid Sensitivity, suitable for higher than normal audio levels and/or higher background noise
levels: (for recording from a noisy phone line when voltage sensing cannot be used due to non-
standard voltages or with normal speaker audio from a radio).
L3: Low Sensitivity, suitable for very high audio levels, and high background noise levels.
Recording may stop if audio levels are too weak: (phone recording with non-standard and very
noisy DC voltages, or extra loud radio audio).
After making changes, click the button labeled
Write Hardware
to confirm any changes. You may
be asked to quit the program and try again. You may also need to unplug and re-connect the
Tele
Corder
power to successfully change the
Tele
Corder
operating parameters.
5.1.15 VAR Turn Off Delay:
If any channels have VAR selected for recording start/stop, select one of
the turn off delay options (
VAR Turn Off Delay
): 4, 12, 32 or 100 seconds. This setting will help to prevent
recordings from ending during quiet periods. Click the
Write Hardware
button to confirm any changes.
5.1.16 VAR Time Out:
If any channels have VAR selected for start/stop, set the timeout to one of the
four choices: 20, 40, 60 or 80 minutes. This setting will limit the maximum length of a recording for easier
management of long conversations or for when recording from broadcast radio where pauses may not be
long
enough
to
separate
individual
recordings
using
VAR
for
start/stop.
If a
recording
reaches
the
maximum
length of time that you select for
VAR Time Out
, that recording will end and a new recording on that
channel will begin. Click the
Write Hardware
button to confirm any changes.
5.1.17 Save VAR and Outgoing Calls Less than 8s or Outgoing Calls with Less than 3 DTMF
Codes:
Click on this option to place a check mark in its box if you want to save recordings that are less
than 8 seconds long. If this box is not checked, VAR recordings shorter than 8 seconds, and outgoing
telephone calls (using voltage sensing for start/stop) with less than 3 DTMF digits, will not be saved.
This setting is normally used if external noise
causes frequent and unwanted false audio activated
recordings,
or
if
telephone
line
testing
produces
short
off-hook
conditions
that
are
not
associated
with
actual
phone
line
usage.
It
is
normal
to
record
all
activity
on
the
monitored
circuits.
Use
care
when
setting
to
delete
short
recordings.
5.1.18 Audio Recording Mode:
From this sub-button you can read or set the quality of recordings.
Mode 0
--- Large file, Good audio.
8bit linear PCM mode, 28.80 MB/hour
Mode 1
--- Tiny file, Poor audio.
2bit ADPCM mode, 7.20 MB/hour
Mode 2
--- Small file, Good audio.
3bit ADPCM mode. Default mode set from factory, 10.84 MB/hour
Mode 3
--- Large file, Best audio.
8bit nonlinear PCM mode, 28.80 MB/hour