User's Manual

Table Of Contents
SFFR-6 User Manual
Using the GoBox
Doc ID: ES1002-UM02-v508
Page 46 of 63
4.5.5.4 NTP and DNS Servers
When using the GoBox in VPN mode, the network time must align with the VPN server time. In order to ensure time
accuracy, the GoBox requires one or more NTP servers which are designated Primary and Secondary. Enter the hostnames
or IP addresses of reliable NTP servers in these fields, e.g. time.nist.gov.
A DNS server is also required to resolve the NTP server hostnames. The DNS server must be entered as an IP address, e.g.
8.8.8.8.
4.5.5.5 Programmable Time-Out Timer
The GoBox can automatically shut down the transmit path after a maximum call duration. This prevents battery drain or an
occupied transmit path when a subscriber unit is holding down the PTT button, either intentionally or accidentally.
Once this duration has been reached, the transmit path is returned to an idle state. There is no lock-out period and any
subsequent transmission may use the transmit path, however if the local uplink remains busy then it may not allow other
users to talk until the offending subscriber unit releases their PTT button.
Allowed values are 0 (no time-out) to 300 seconds.
4.5.5.6 Repeat FNE-addressed Data
FNE-addressed (unit ID = 0) data packets are typically not repeated over-the-air by the GoBox. This behaviour may be
changed by enabling this setting, which forces all inbound data packets to be repeated, no matter the destination address.
Updating and syncing network time may take a number of minutes after a profile using a network has been
selected. During this time the VPN may report failure to connect.
!
The default value for this is 60 seconds, and unless modified, users should be aware that a long PTT transmission
may end prematurely.
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