WB-15-W. User manual
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PIN
– PIN code of the used SIM card. If there is no PIN code the field can be left blank.
To apply a new configuration and save setting to non-volatile memory, press «Apply». Press «Cancel» to discard
the changes.
4.5.2 The «Channel Reservation» submenu
In the «Channel Reservation» submenu, you can configure the switching of the active SIM card if the quality of the
connection with the current active SIM card does not meet the specified parameters. The channel quality control
mechanism is based on sending ICMP messages to a server and analyzing the resulting statistics.
Enabled
– you must set a flag to activate the channel reservation function;
ICMP Echo-Request Period, s
– period with which the device will send ICMP requests to the specified ping-
server;
ICMP Echo-Reply Timeout
– time during which the device will wait for an ICMP reply from the server. If the
response from the server received later than the set wait timeout, or did not been received at all, this ICMP
request is considered unanswered;
ICMP Echo-Request Count
– number of consecutive ICMP requests sent each time the procedure starts
(after the time period for sending ICMP requests). The decision to switch the SIM card is based on the
statistics obtained as a result of the procedure;
DSCP
– priority of sent ICMP requests
Ping server 1, Ping server 2, Ping server 3
– servers to which the device sends ICMP requests. First, ping
starts up to ping server 1, if it is unavailable (or if the received statistics do not meet the specified quality),
ping starts up to ping server 2, then similarly to ping server 3. If the results are unsatisfactory on all
configured servers, the active SIM card will switch. If the results are successful on at least one of the
specified servers, the switch will not occur. For the mechanism to work, be sure to add at least one ping-
server to the configuration.
MAX Lossrate, %
– maximum allowable percentage of ICMP requests for which no ICMP response was
received during the timeout period for waiting for the ICMP response. If this loss value is exceeded, the
active SIM card will switch, or go to the next ping-server;
