Futurecom VR - Page 96

8G093X01 R5
VR Programming Guide
August 2022 Page 96 of 144
Field Name
Range
Description
Notes
Outbound
Call Audio
Digital
Clear
Warning Tones
Digital: VR repeats encrypted calls
from the FNE as a digital P25
encrypted call. Requires Inbound
Calls Enabled to be checked. See
Inbound Calls Enabled for
limitations.
Clear: VR repeats encrypted calls
as a clear analog signal if the MSU
has the required encryption key
loaded. If MSU does not have the
appropriate key to decrypt call VR
does not repeat.
Warning Tones: DVR will not
repeat any audio and will instead
repeat a tone intermittently while
the encrypted call is ongoing. Does
not require MSU to be encrypted.
This keeps the channel busy so a
local PSU does not transmit while
the MSU is receiving.
Applicable when selected
repeater channel is
selected for analog audio
(Analog, Mixed (when in
analog hang time) and FA-
ALL)
Simplex
Simplex
PPI Interval
Disabled
500 to 10000ms
When enabled (Simplex Analog VR
channels only), the VR will
periodically interrupt transmissions
during System outbound calls and
check for PSU activity. If PSU
activity is detected, the VR will drop
the outbound call repeat and give
higher priority to the PSU Inbound
call.
Applicable to Simplex
Analog VR channels only.
Fallback in
Analog
Simplex
Mode
Enabled
Check box
(unchecked)
If enabled (checked), a non-
Primary VR that detects a valid
Inbound or Outbound Call will
monitor for Primary VR repeating
the call and if such is not detected,
the non-Primary VR will repeat the
call. The non-Primary VR only
temporarily repeats the call and
does not become a Primary when
Primary repeat is not detected. The
first few seconds of the Inbound or
Outbound Call are always lost
while the non-Primary VR is
checking for Primary repeat and
deciding if fallback is needed. MSU
MIC PTT will key up both the VR
and the MSU.
Applicable to Simplex
Analog VR Mode only.
PSU
Analog
Audio
Queuing
500 to 1300 (1250)
ms
Defines the analog audio buffer,
which prevents the loss of audio at
the beginning of transmission while
the MSU is acquiring channel
grant. Longer time value may
cause the PSU user to hear the tail
end of his own transmission.
Applicable to Trunking
systems where system
access channel grant may
take 1000 – 1500ms.